Biohazards
n. 生物危害
🗣️ 情景例句
I'd just like to repeat, do not be late!
我只想重复一遍，别迟到！
Let difficulties occur but not the loss of courage.
纵使困难重重，也不丧失勇气。
of a change of atmosphere, of a diversion of effort, is essential.
改变一下气氛，转移一下注意力，这是不可缺少的。