Trichlorotrivinylarsine

三氯三乙烯胂

??? 情景例句

Maybe some of us would like to pay a little bit more
也許我們之中有一些人愿意多付一點錢
Wisdom is a good purchase though we pay dear for it .
為了求知識,代價雖高也值得。
When my husband was going into the dining room this morning, he dropped some coins on the floor.
今天早晨我丈夫走進飯廳時,把一些硬幣掉在地上了。
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