remain是一个
英语单词，可用作动词、
名词。通常用作动词，作动词时意思是“保持（不变）；依然是；留下；剩余；逗留；残存；仍需去做（或说、处理）”；作名词时意思是“遗迹；剩余物，残骸”，但要注意的是，用作名词时应当使用remains。
( not usually in the progressive tenses 通常不用于
进行时) (
formal )
[ v. + adj. ]
[ v. + n. ]
2.[ vi. ] to still be present after the other parts have been removed, used, etc.; to continue to exist剩余；遗留；继续存在
4.[ V. usually + adv./prep.] to stay in the same place; to not leave 逗留；不离去
1.~ (of
sth)the parts of sth that are left after the other parts have been used, eaten, removed, etc. 剩余物；残留物；剩饭菜
2.the parts of ancient objects and buildings that have survived and are discovered in the present day 古代遗物；古迹；遗迹；遗址