Etu
abbr. electron tube 电子管; ethylene thiourea 乙烯基尿素
🗣️ 情景例句
Do you?
你会吗？
Every time the sheep bleats it loses a mouthful.
羊每叫一次，就少吃一口。
In Gambia, as in most parts of Africa, there are few written records of family histoy.
冈比亚同非洲多数地方一样，有关家族的书面记载为数极少。