Standby battery
[电] 备用电池
🧩 词语组成解析
standby
['stændbai;'stændˌbai]
n. 备用品;可信赖的人;
adj. 备用的;
adv. 备用地;待命地;
battery
['bætri]
n. [电]电池，蓄电池;[军]炮台，炮位;一组;[法]殴打;
bat =beat,表示”打,击”#词根助记：bat打击,battery曾经主要表示用来打击目标的大炮
🗣️ 情景例句
I'm sorry I'll have to pass.
很遗憾我得错过这回了。
Would he have seen you if you hadn't waved to him?
如果你没向他招手他会看见你吗？
This would solve the problem of ventilation, for if a train entered this tunnel, it would draw in fresh air behind it.
因为如果有列火车开进隧道，它就把新鲜空气随之抽进了隧道。