Hexestrol
己雌酚
??? 情景例句
It's no big deal.
沒什么大不了的。
To skydive
漫游太空
There is only enough spring water to supply the needs of the houses, so we have to pump from the river for farm use.
泉水只能滿足家庭生活用水，因此我們必須從河里抽水以用于農(nóng)業(yè)生產(chǎn)。