Estrosteron
雌三烯二醇雙十一碳烯酸酯
??? 情景例句
Don't stand on ceremony, make yourself at home.
別客氣，隨便吃。
In my opinion, the product must be priced under $ 300.
就我的意見來說，產品價格必須訂在300美元以下。
electronic goods and drug manufacturing.
-- 電子產品和藥品的生產。