Tref
a. (按犹太教食规) 不洁净的, 不可食用的
🗣️ 情景例句
No, thanks.
不用了， 谢谢。
It's about seventy degrees Fahrenheit this afternoon.
今天下午的温度大约70华氏度。
He has pointed out that the tree is a useful source of income as tour-ists have been coming from all parts of the country to see it.
他指出，由于人们从全国各地纷纷前来参观这棵树，