Tefzel
乙烯-四氟乙烯共聚物
🗣️ 情景例句
Well, do you have the phone number there?
那么， 有那儿的电话号码吗？
Never be weary of well doing.
行善莫厌烦。
No matter how hard I tried, it was impossible to fill this beautiful pen with ink and to this day it has never written a single world!
然而不管我如何摆弄，那枝漂亮的钢笔就是吸不进墨水来。直到今天，那枝笔连一个字也没写过！