Zinethyl
二乙鋅
??? 情景例句
We'll move after the school term.
我們等這學(xué)期結(jié)束后再搬。
Ill air slays sooner thant the sword.
污濁的空氣殺人比刀還要快。
This is because they had no natural enemies until the arrival of humans and therefore did not need to develop flying wings.
這是因為人類到達這里之前，這些鳥沒有天敵，因此，它們不需要發(fā)育飛行的翅膀。