臺(tái)灣籍旅美老師今天交給我們的句子是:
Ideally the diamond is flawless if you can't see any of that stuff under ten times the magnification. The higher the clarity the more rare and expensive it is.
理想來說一顆鉆石在放大了十倍之后還沒看到任何雜質(zhì),它就完美無瑕了。鉆石的凈度越高,數(shù)量就會(huì)越少,價(jià)格也更昂貴。