Magcophos
四磷酸鈉
??? 情景例句
We think it might be just right for ten- to twelve-year-olds.
我們想它或許對(duì)十歲到十二歲大的孩子正合適。
Everyone's ready and waiting for you.
大家都好了，就等你啦！
Spiders are busy for at least half the year in killing insects.
蜘蛛至少有半年在忙于吃昆蟲。