fix

Compared meaning: to repair something broken (verb).

比较义项：修理，使损坏的东西恢复正常（动词）。

• fix 本词

  The most common, informal everyday word for repairing something broken; it applies to almost anything, from furniture to gadgets, and sounds casual and general.

  fix是最常见、最口语化的日常用词，几乎可以用来修理任何损坏的东西，从家具到小工具都行，听起来随意、通用。

  Could you fix the leaky faucet in the kitchen?

  你能把厨房里漏水的水龙头修一下吗？

• repair

  More formal than fix, often implying skilled or professional work on machines, vehicles, or structures; it can also be used as a noun, as in 'a repair.'

  repair比fix更正式，常暗示由专业人员对机器、车辆或建筑物进行技术性维修；它也可以作名词使用，如“a repair”（一次维修）。

  The garage will repair your car's engine by Friday.

  修车厂将在星期五之前修好你车子的引擎。

• mend

  Often used for smaller-scale repairs, and can be used intransitively for something healing by itself, as with a broken bone; it sounds slightly old-fashioned compared to fix.

  mend常用于规模较小的修补，也可以不及物地表示伤口、骨折等自行愈合；相比fix，它的语气略显旧式。

  The doctor said the broken bone would mend within six weeks.

  医生说这处骨折需要六周才能愈合。

Fix, repair, and mend all mean to make something broken work again. Fix is the most common, everyday word, used for almost anything. Repair is more formal, for machines or vehicles. Mend suits smaller items, and can also mean healing naturally, like a broken bone.

这三个词在“修理”这个意思上很接近，但语气和适用范围不同：fix最口语化、最常用，几乎什么东西都能fix；repair更正式，多用于机器、车辆等专业维修场合；mend则偏向小物件的修补，也常表示伤口、骨折等自然愈合，语气略旧。这里不比较fix的“确定、安排（时间）”等其他义项，也不比较mend在“mend fences”一类习语中“改善关系”的引申义。

Compared meaning: to attach something firmly in place (verb).

比较义项：固定，使牢固地附着或结合在某处（动词）。

• fix 本词

  General verb for attaching something firmly to a surface or place; often used with 'to', as in fixing a shelf to a wall; very common, neutral register.

  泛指的动词，表示把某物牢固地固定在某个表面或位置上；常与“to”连用，如把架子固定在墙上；非常常用，语域中性。

  He fixed the shelf to the wall with four long screws.

  他用四颗长螺丝把架子固定在墙上。

• secure

  Emphasizes making something stable so it cannot move, fall or come loose, often used with ropes, straps or loads; also common in safety contexts.

  强调使某物稳固，不会移动、掉落或松脱，常与绳索、带子或货物搭配，也常用于安全语境。

  The workers secured the ladder with rope before climbing onto the roof.

  工人们爬上屋顶前先用绳子把梯子固定好。

• fasten

  Means to join or close two parts together so they stay connected, typically with buttons, buckles, straps or zips; concrete, physical closing action.

  表示把两部分连接或扣合在一起，使其保持相连，通常用于纽扣、带扣、背带或拉链；是具体的物理扣合动作。

  She fastened the buckle on her backpack before heading out the door.

  她出门前先扣好背包上的带扣。

Fix, secure, and fasten all mean to attach something firmly. Fix is the general word, as in fixing a shelf. Secure means making something stable so it cannot move, often with ropes or straps. Fasten means joining two parts together, with buttons or zips.

这三个词都表示把某物牢固地固定住，但语气和用法不同；这里不比较secure的“获得”或“使安全”义，也不比较fix的“修理”和“确定”义，以及fasten的“集中于”义。

Compared meaning: to decide something firmly (verb).

比较义项：确定（动词）。

• set

  The neutral, everyday choice for announcing or arranging a specific value — a date, price, rule, or record — without implying investigation or special formality.

  三者中最中性、最常用的词，指宣布或安排一个具体的数值、日期、规则或纪录，通常比较随意，不涉及调查或特别正式的场合。

  The company set new safety standards for all its factories.

  这家公司为旗下所有工厂制定了新的安全标准。

• determine

  Implies deciding something firmly as the result of investigation, evidence, or acting as the deciding factor itself, rather than simply announcing a choice; more formal, used with abstract outcomes.

  强调经过调查、证据或作为决定性因素而确定下来，而不是简单地宣布选择；语气更正式，常用于抽象的结果。

  Scientists determined the exact cause of the plane crash after years of investigation.

  经过多年调查，科学家们确定了这起空难的确切原因。

• fix 本词

  Similar to set but more formal, often British, used especially for settling a specific date, price, or appointment through agreement or arrangement between people.

  与 set 相近但更正式，常见于英式英语，尤指双方通过商定或安排来确定具体的日期、价格或约会。

  We finally fixed a date for the wedding after months of discussion.

  经过几个月的讨论，我们终于确定了婚礼的日期。

Set, determine, and fix all mean to decide something firmly. Set is the neutral, everyday word for announcing a date, price, or rule. Determine implies deciding after investigation, or as the deciding factor itself. Fix is like set but more formal and often British.

这三个词在“确定下来”这个意义上很接近，但语气和使用场合不同：set 最随意、最常用，fix 更正式、偏英式英语，determine 强调经过调查或作为决定性因素而定，语气最正式。这里不比较 set 的“摆放、布置”（如 set the table）和 fix 的“修理”等其他意思。