on cue

at the correct moment

恰是时候

right on cue the door opened.

门适时地开了。

take one's cue from

follow the example or advice of

学…的样；听从…的建议

McGee did not move and Julia took her cue from him.

麦吉没有动，朱莉娅也学他的样。

cue (someone) in

To give information or instructions to (a latecomer, for example).

提供信息，提供指示：给（后来者等）提供消息或指示