他试图逃跑,但她紧紧地抓住他。
He tried to get away, but she held him ___fast.
他们将这些价值观视为牢牢固定幸福的锚。
They regard these values as anchors that hold happiness ___fast.
盖子被拧得很紧,所以不会掉下来。
The lid was screwed on ___fast, so it wouldn't come off.