safety
adv/n. 安全；保险；安全设备；保险装置；安打；
例句：I was pleased to hear you arrived home safely.
听说你平安到家我很高兴。
相关介绍
We can build up the speed gradually and safely.
我们可以逐步安全地加快速度。
I was thankful to see they'd all arrived safely.
看到他们都平安到达，我感到欣慰。
The space shuttle Atlantis returned safely to Earth today.
亚特兰蒂斯号航天飞机今天安全返回地球。
Knowing that they had arrived safely took a load off my mind.
得知他们平安到达后我如释重负。
The space shuttle returned safely today from a 10-day mission.
航天飞机在为期10天的任务之后于今日平安返回。
The waste is safely locked away until it is no longer radioactive.
废料被安全地封存，直到其不再有辐射。
