Pyroarsenate
焦砷酸鹽
??? 情景例句
People power.
人力。
Speech is silver (or silvern), silence is golden.
雄辯是銀，沈默是金。
I like gardens too, but I do not like hard work.
我也喜歡花園，但我卻不愿意辛勤勞動。