Underfill
n. [冶](孔型)未充满
🗣️ 情景例句
Hello. This is an emergency. Can you please send an ambulance?
喂，这儿有急病患者，请派一部救护车来。
No class!
真没水准！
Then we could look at the production line.
然后我们再去看看生产线。