Methaldehyde
四聚乙醛
??? 情景例句
I made an appointment with the doctor at three.
我和醫(yī)生約好3點(diǎn)鐘看病。
I hope we can conclude the transaction at this price.
希望我們能就此價(jià)格達(dá)成交易。
We don't have enough material on hand to take care of this.
我們現(xiàn)在手邊的存量不夠你的訂單。