碱金属原子的价原子具有两种能态.The valence atom of an alkali - metal atom has two states.所有的碱金属都在闭合壳层之外有一单个S电子.All the alkali metals have a single s - electron outside a closed shell.当碱金属光谱显示出不容怀疑的双线结构时,是令人惊奇的.It was surprising when th...
我们事先得到敌人正在逼近的警报.We received warning that the enemy were getting nearer.正在逼近的龙卷风使我们惊恐万分.The approaching tornado struck awe in our hearts.那辆宝马车开始赶上来,超过了其他车辆并且在逼近的时候开始加速。The BMW started coming forward, passing the other car...
The women of the town wailed over the war victims.城里的妇女为战争的死难者们痛哭.The wind wailed outside the closed windows.紧闭的窗户外狂风呼啸。All around women wailed their woe or screamed abuse.四下里女人们呼天抢地,高声叫骂。They danced at weddings and wail...