Abieninic acid
[化] 冷杉酸
🧩 词语组成解析
🗣️ 情景例句
Besides, reasonable quantities of marketing literature are supplied free of charge.
此外，我们还免费提供一定数量的营销资料。
She is the most gracious hostess I have ever known.
她是我所见过的最和蔼的女主人。
At the moment, they cover every inch of floor space and I actually have to walk on them to get in or out of the room.
这会儿，书把地板的每一点空隙都占据了，我实际上是踩着这些书进出房间的。