当手提钻开始工作时,她塞住耳朵; 塞住鼻子.She held her ears when the jackhammer started to operate; hold one's nose.我和朋友说话,而某人在我们身后正用手提钻在修路.I talk to my friend and someone repairing the road behind us starts up a jackhammer....
Among these plants , the most important families are as follows , Ranunculaceae, Berberidaceae, Menispermaceae, Papaveraceae, Rutaceae, Fabaceae, Apocynaceae, Solanaceae, Asteraceae and so on.其中主要的科为:毛莨科 、 小檗科、防己科 、 芸香科 ...