lighten

减轻、减少

The new software should lighten the workload for everyone.

新的软体应该能减轻大家的工作量。

使变轻、卸下重量

We removed two boxes to lighten the backpack.

我们拿掉两个箱子，让背包轻一点。

使变亮、调亮、使变淡

You can lighten the photo a little before printing it.

你可以在列印前把照片调亮一些。

变亮、转亮

The sky lightened just before six in the morning.

天空在早上快六点时亮了起来。

使轻松、缓和

He told a joke to lighten the mood in the room.

他讲了个笑话来缓和室内的气氛。

变开朗、放松

Her expression lightened when she heard the good news.

她听到好消息时，表情开朗了起来。

放轻松、别太认真口语

Lighten up, it was only a small mistake.

放轻松，那只是个小错误。