他死于我们到达前的四天。

He died four days before my arrival.

youdao

在丢失的消息到达前，拒收顺序错乱的消息。

Holds back out-of-order messages until missing messages arrive.

youdao

首先出现水位的逐渐变化，这是风暴到达前几小时的先兆。

Firstly comes a gradual change in water level, the forerunner, a few hours ahead of the storm's arrival.

youdao

When an action potential comes down this pre-synaptic axon, when it reaches this point here, it sets off the process of these vesicles dumping their content into the synaptic cleft.

当动作电位到达轴突的突触前膜时,当到达这一点时 小泡就将其内含物,排放到突触间隙中去

耶鲁公开课 - 生物医学工程探索课程节选