Dihydroequilin
[化] 二氫馬烯雌酮
??? 情景例句
But your L C must reach us 30 days before delivery.
但交貨前30天，我們必須要收到你們的信用證。
The darkest hour is that before the dawn.
黎明前是最黑暗的時刻。
We can't afford all that money.
我們花不起那么多錢。