Uroazotometer
尿氮定量器
🗣️ 情景例句
Really, Grandpa?
真的， 爷爷？
Don't count your chicken before they are hatched.
不要过早乐观。
By this time, a Lancaster bomber in reasonable condition was rare and worth rescuing.
到了那个时候，状况良好的兰开斯特轰炸机实属罕见，值得抢救。