Covalent
a. 共有原子價的, 共價的
??? 情景例句
Great. What's happening with you these days?
非常好。你最近幾天怎么樣？
He who is born a fool is never cured.
生成的傻子總是治不好的。
So, faced with the Danish advance, Alfred did not risk open battle but harried the enemy.
因此，面對丹麥人的進攻，阿爾弗雷德沒有貿(mào)然同敵人作戰(zhàn)，而是采用騷擾敵人的戰(zhàn)術(shù)。