Point charge
[化] 点电荷
🧩 词语组成解析
🗣️ 情景例句
Scene: Tom and his wife have invited Carl and David for dinner.
场景：汤姆和他夫人邀请卡尔和大卫吃晚饭。
You need an injection.
你需要打针。
because balloons can be a great danger to aircraft.
因为气球有可能给飞机造成极大的危险。