1、speed up

加快(…的)速度

You notice that your breathing has speeded up a bit.

你注意到自己的呼吸加快了一些。

He pushed a lever that speeded up the car.

他挂挡加快了速度。

(使)(某一过程或活动)加快

Job losses are speeding up.

失业趋势正在不断加快。

I had already taken steps to speed up a solution to the problem.

我已经采取措施加快解决该问题。

2、send out

分发;散发

She had sent out well over four hundred invitations that afternoon.

那天下午她发出了远远不止 400 份请柬。

发出(信号、声音、光、热等)

The crew did not send out any distress signals.

机组人员没有发出任何求救信号。

Like bats, they send out sound waves and make sense of their environment from the echoes they receive back.

像蝙蝠一样，它们发出声波，然后根据收到的回音来了解周围的环境。

生出，长出(根茎、枝芽等)

If you cut your rubber plant back, it should send out new side shoots.

橡胶树修剪完后，应会长出新枝。