It's a good idea to spend the first night of your holiday sleeping off the jet lag.

你假期的第一天晚上睡觉来消除飞行时差反应是个好主意。

Jet lag is caused because the body clock does not readjust immediately to the time change.

时差是因为生物钟没有立即适应时间的改变而引起的。

Jet lag can also cause insomnia.

时差也会导致失眠。

It's probably because of jet lag.

可能是时差的原因。

"It's like having jet lag," Green says.

“这跟时差很相似”格林说。