R-fvalue
[化] R-f值; 比移值
🗣️ 情景例句
What if we can't tie the tie?
如果我们弄不好领结怎么办？
What will the weather be like tomorrow?
明天天气怎么样？
That's a nice car. How long have you had it?
好漂亮的汽车。你买多久了？