1.tell from 从...中看出,得出
You could tell from his slurred speech that he was drunk.
从他那含糊不清的话语中你就知道他喝醉了。
We could tell from the rumble of the thunder that rain was coming.
我们根据雷的轰隆声可断定,天要下雨了。
2.sometimes...other times...有时...有时
Sometimes he's fun to be with; at other times he can be very moody.
有时候他很有风趣, 可也有时候脾气一上来就喜怒无常。
You laughed sometimes and cried at other times.
有时你会高兴地大笑,有时又会难过地哭泣。