Valoneaic acid dilactone
[化] 橡┥酸二内酯
🧩 词语组成解析
[机] 二内酯
🗣️ 情景例句
Would you please try to keep quiet at this hour?
这么晚了，你能不能尽量保持安静。
One hour's sleep before midnight is worth three after.
午夜前睡一小时抵得上午夜后睡三小时。
So was born the echo-sounding apparatus, now in general use in ships.
这样就产生了目前各种船舶上普遍应用的回声探测仪。