Larixine
(落葉)松皮素
??? 情景例句
I'm so busy that I don't get around to it.
我忙得找不出時間去做它。
He's a cook.
他是廚師。
Economy is one powerful motive for camping, since after the initial outlay upon equipment,
圖省錢是露營的一個主要動機，因為除了開始時購置或是租借一套露營裝備外，