Sunday，2026.07.12

New words：

suffice /səˈfaɪs/ vi.足够；足以

详细词源拆解：

前缀 suf-（充分、到位）+ 词根 fic（做）；书面正式用词，本义事物数量、程度达标，能够满足需求。

词汇家族

suffice (v. 足够)
→ sufficient (adj. 充足的)
→ sufficiently (adv. 充分地)
→ sufficiency (n. 足量，充足)
→ insufficient (adj. 不足的)

必记高频搭配

suffice for sth 足够应付某物

This bag suffices for all my school things.

suffice to do sth 足以做某事

Half an hour suffices to finish this exercise.

suffice it to say that… 长话短说；只需说……（书面高级句型）

I won’t go into all the details. Suffice it to say that the whole event was a complete disaster.

关键使用提醒

1. 同义句型替换（写作提分）

   sth suffice to do = sth be sufficient to do = have enough sth to do
   One hour suffices to read this story. = One hour is sufficient to read this story.
   一小时足够读完这个故事。

2. 高级固定句式 suffice it to say that…，议论文、书信均可使用

   Suffice it to say that practice makes perfect.
   只需说，熟能生巧。

3. 语法使用规则：不及物动词，后接介词 for，不能直接加人作宾语

   错误：The bread suffices us
   正确：The bread suffices for us

4. 语体区分：suffice、sufficient 偏向正式书面；enough 口语、普通作文通用。