Etu
abbr. electron tube 电子管; ethylene thiourea 乙烯基尿素
🗣️ 情景例句
A photographic journey.
一次透过摄影作品的旅行。
An ounce of prevention is worth a pound of cure.
预防胜于治疗。
6 What would you like to be admired for?
6。你乐于被夸奖的事是什么？