Threadless
a. 无线的, 无螺纹的
🗣️ 情景例句
Can I get you some coffee or tea or a cold drink, Rita Mae?
要咖啡、 茶或者冷饮吗 ，Rita Mae？
I didn't know whether to send the letter airmail or not.
我不知道是否送航空邮件。
I don't like to be late. We begin classes at 8:00.
我不喜欢迟到。我们八点上课。