Blm
[化] 双层脂膜; 黑脂膜
🗣️ 情景例句
It's well worth the time.
这很值得花时间。
How long will you be out?
你将出去多久？
He put a glass dish with sugar water and honey to the west of the hive. A marked bee fed itself from the dish and returned to the hive.
他在蜂箱的西面放一个装有糖水和蜜蜂的玻璃碟子。