Billis
n. [计量] 千兆分之一（忽，毫微）\\nn. (Billi)人名；(意)比利
🗣️ 情景例句
Break a leg!
祝贺！
He has a letter.
他有一封信。
The efficiency is greatly raised,and the intensity of labor is decreased.
工作效率大大地提高了，而劳动强度却降低了。