Unfluted
無(凹)槽的
??? 情景例句
Something old.
舊的東西。
Although my career as an international businessman is limited.
雖然，作為一個國際商人，我的事業(yè)是有局限性的。
None of us is afraid of difficulties.
我們當(dāng)中沒有一個人害怕困難。