stop something from spreading or escaping
~ sthif sth contains sth else, it has that thing inside it or as part of it 包含；含有；容纳
This drink doesn’t contain any alcohol.
这种饮料不含任何酒精。
Her statement contained one or two inaccuracies.
她的陈述有一两处不准确。
a brown envelope containing dollar bills
装有钞票的棕色信封
The bottle contains (= can hold) two litres.
此瓶容量为两升。
to keep your feelings under control 控制，克制，抑制（感情） SYN restrain
~ sth
She was unable to contain her excitement.
她无法抑制内心的激动。
~ yourself
I was so furious I just couldn’t contain myself (= I had to express my feelings).
我气愤极了，简直无法克制自己