Stilronate
二丙酸已烯雌酚
??? 情景例句
The work is not as difficult as you think.
工作不像你想象的那么難。
I was crossing the street and was almost hit by a car.
我穿過街時差一點被一輛汽車撞了。
Which hammer? This one?
哪一把？是這把嗎？