Gaseous tube
[电] 气体管
🧩 词语组成解析
🗣️ 情景例句
I love you with all my heart.
我全心全意爱你。
Every salesman boasts of his own wares.
老王卖瓜，自卖自夸。
Precautions of this sort are necessary, for it is impossible to foretell the exact nature of the difficulties which will confront the pot-holer.
作出这样的准备是必要的，因为无法预见到洞穴探险者究竟会遇到什么性质的困难。