almost

almost, nearly, about, approximately, around, roughly

这些副词均有“大约，差不多”之意。
almost: 指在程度上相差很小，差不多。
nearly: 与almost含义基本相同，侧重指数量、时间或空间上的接近。
about: 常可分almost和nearly换用，但about用于表示时间、数量的“大约”时，实际数量可能多也可能少。
approximately: 多用于书面语，指精确度接近某个标准以致误差可忽略不计。
around: 多用于非正式场合，常见于美国英语。
roughly: 指按粗略估计，常代替about。

副词 almost:

1. (of actions or states) slightly short of or not quite accomplished
   同义词：about, just about, most, all but, nearly, near, nigh, virtually, well-nigh

1. He slipped and almost fell.
   他脚下一滑，险些跌倒。
2. Dinner's almost ready.
   饭差不多准备好了。
3. He's almost six feet tall.
   他差不多有六英尺高。
4. She fell and almost/nearly broke her neck.
   她跌倒了，险些跌断了脖子。
5. It's a mistake they almost always make.
   那是他们几乎总要犯的错误。
6. It's almost time to go.
   差不多是该走的时候了。
7. Almost anything will do.
   几乎什么都行。
8. She said almost nothing.
   她几乎什么都没说。