6、nonflammable adj. 不易燃的;
7、noninteractive a. 不相關的，非交互的;
8、nonviolent adj. 不使用暴力的，非暴力的.
例句：
Affecting nonchalance, I handed her two hundred dollar bills.
我假裝若無其事地遞給她兩張百元鈔票。
She was very tense, but she preserved an appearance of nonchalance.
她內心很緊張，可外表卻裝著滿不在乎的樣子。
It may be advisable to take out a home-equity loan to pay off other nondeductible obligations.
所以來建立一個家庭貸款來支付其他的不可抵減的債務是明智的。