screen

Compared meaning: a tool for sorting or filtering material (noun).

比较义项：筛子（分离、筛选用具）（名词）。

• screen 本词

  Refers to a coarser, often industrial or outdoor device (a mesh frame) used to sort or filter larger solid materials like gravel, sand, or ore by size; rare in kitchen use.

  screen（筛子）通常指网眼较粗的工业或工地用具，用于按颗粒大小分拣沙石、矿石等较大的固体材料，很少用于厨房场景。

  The workers used a large screen to separate the gravel from the sand.

  工人们用一个大筛子把碎石和沙子分开。

• sieve

  Refers to a fine-mesh tool, most often used in the kitchen or a lab, for separating solids from liquids or straining lumps out of powder.

  sieve（筛子，滤网）通常指网眼较细的厨房或实验用具，用于把固体从液体中分离出来，或筛去粉末中的结块。

  She pressed the sauce through a sieve to remove the seeds.

  她把酱汁压过筛子，滤掉了籽。

Screen and sieve both mean a tool with small holes for sorting or filtering. Screen is often industrial, used to sort solid materials like gravel or sand by size. Sieve is used mostly in the kitchen, to separate solids from liquids or remove lumps.

这两个词在“筛子”这一义项上意思相近，但语境不同：screen 多用于工业或工地场景，筛选较大颗粒的固体材料；sieve 多用于厨房或实验室，筛选细小颗粒或分离固体与液体，语气更日常、家常。这里不比较 screen 的“屏幕”“纱窗”等其他义项。

Compared meaning: to block or protect something (verb).

比较义项：遮挡、掩护（动词）。

• screen 本词

  Screen means to block something from being seen or detected, using a barrier such as trees, curtains, or a partition; it focuses on concealment, not necessarily protection from harm.

  screen指用树木、窗帘或屏风等障碍物挡住视线，使某物不被看见或察觉，侧重“遮蔽”而非防止伤害。

  The tall fence screened the pool from the neighbours' view.

  高高的围栏挡住了游泳池，使邻居看不到。

• shield

  Shield means to actively protect someone or something from danger, harm, or unpleasant things, often by placing oneself or an object between them and the threat.

  shield指主动保护某人或某物免受危险、伤害或不良影响，常表示用自己身体或物体挡在其与威胁之间。

  He shielded his eyes from the bright sun with his hand.

  他用手护住双眼，挡住刺眼的阳光。

Screen and shield both mean to block or protect something. Screen means to hide something from view, using a barrier like trees or curtains, without necessarily protecting from harm. Shield means to actively protect someone from danger, often by standing between them and the threat.

这两个词在“遮挡、掩护”这一义项上意思相近，但语气不同：screen强调用屏障挡住视线或探测，使某物不被发现，偏向“遮蔽”；shield强调主动保护某人免受伤害或危险，语气更强、更具防御性。此处不比较screen作名词“屏幕”或动词“筛选，审查”的用法，也不比较shield作名词“盾牌”的用法。

Compared meaning: a covering that blocks something (noun).

比较义项：遮挡物（名词）。

• screen 本词

  Screen is a mesh- or panel-like barrier that shields an area from insects, wind, view or intrusion; it does not necessarily block light and is common on doors, windows, patios or as a room divider.

  screen（遮挡物）指用来阻挡蚊虫、风、视线或外来侵扰的网状或板状屏障，不一定能遮光，常见于门、窗、露台，或用作房间隔断。

  We put a screen door on the porch to keep mosquitoes out in summer.

  我们在门廊装了一扇screen门，这样夏天就不会有蚊子飞进来了。

• blind

  Blind specifically names slats or a fabric shade fitted to a window that can be raised, lowered or tilted to control how much light and privacy enter a room.

  blind（窗帘／百叶帘）特指安装在窗户上、由细板或布料制成、可升降或调节角度以控制进光量和隐私的遮光装置。

  She lowered the blind to keep the afternoon sun out of the living room.

  她放下了blind，这样午后的阳光就照不进客厅了。

Screen and blind both cover or block an area. Screen is a mesh or panel barrier against insects, wind, or view, but not always light. Blind is slats or fabric on a window, raised, lowered, or tilted to control light and privacy.

screen和blind在“遮挡物”这一意义上都指用来遮挡某个空间的物品，但screen强调阻隔视线、昆虫、风或外来侵扰的网状／板状屏障，不一定能遮光；blind专指装在窗户上、可升降或调节角度以控制光线和隐私的遮光装置。这里不比较screen作“屏幕”（如电脑屏幕）的意思，也不比较blind作形容词“失明的”的意思。