Biopathogen
生物病原
🗣️ 情景例句
Is this perfume safe for all skin types?
这香水适合所有的皮肤吗？
How did you sign the letter?Did you write, sincerely yours?
你怎么签名信的?你写了"真诚地你的"？
A game that is very popular with these young swimmers is the underwater tricycle race.
这些幼小的游泳运动员非常喜爱的一种游戏是水下三轮车比赛。