Inert matter
[醫] 無效物質, 惰性物質
?? 詞語組成解析
inert
[i'n?:t]
adj. 遲鈍的;不活潑的;[化]惰性的;
matter
['m?t?]
n. 事件;（討論、考慮等的）問題;重要性;物質;
vi. 要緊，重要;化膿;有重大影響;有重要性;
??? 情景例句
Will do.
沒問題。
I hope it turns out all right.
我希望結果很好。
He's gone to England with his family. He won't be back until January.
他和家人一起回英國了。要到元月份才回來。