substitute

Compared meaning: to put something new in place of something old (verb).

比较义项：用新的事物代替旧的（动词）。

• replace

  The everyday, general word for putting a new thing in place of one that is broken, old, or lost; a direct transitive verb (replace X), often paired with 'with' to name the new item.

  replace 是日常泛用词，指用新的东西代替破损、旧的或丢失的东西；是及物动词（replace X），常与 with 连用来说明新事物是什么。

  We need to replace the broken window before winter arrives.

  冬天到来之前，我们需要更换那扇破损的窗户。

• substitute 本词

  Suggests a temporary or interchangeable stand-in rather than a permanent change; typically used as 'substitute A for B', or as a noun for the stand-in person or thing.

  substitute 强调临时性或可互换的替代物，而非永久性的更换；常用“substitute A for B”的固定搭配，也可作名词，指充当替补的人或物。

  You can substitute honey for sugar in this recipe.

  在这道食谱中，你可以用蜂蜜代替糖。

Replace and substitute both mean to put a new thing in place of an old one. Replace is the everyday word for a full, often permanent change, usually followed by 'with'. Substitute suggests a temporary or interchangeable stand-in, typically used as 'substitute A for B'.

replace 和 substitute 在“用新事物代替旧事物”这个意义上很接近，但语气不同：replace 是日常泛用词，强调彻底更换；substitute 更强调临时性或可互换的替代，常用“substitute A for B”的固定搭配，也可作名词表示“替补”。