Flourometer
澄粉器, 澄清器
🗣️ 情景例句
How big is your family?
你家有几口人？
Is it convenient to you if I come at 6 p.m.?
如果我下午6点来拜访你，方便吗？
Oh, and please keep together. We don't want any of you to get lost!
噢，请大家靠拢一些。我们不想丢下任何一位同学！