Pentahydrate
n. [化]五水合物
??? 情景例句
and he made the weekend very easy for us to enjoy.
使得我們的周末過得非常輕松愉快。
Liberty often degenerates into lawlessness.
自由隨便，經(jīng)常墮落到無(wú)法無(wú)天。
Which hospital?
哪所醫(yī)院？