前线的防务得到后备装甲部队的支援。These front-line defences are backed up by armoured units in reserve.沿整个前线已部署了坦克。Tanks have been deployed all along the front line.主力部队开往前线.The main body of troops moved toward the front....
The plant acts as a sedative in treating neuralgia.这种植物被用作治疗神经痛时的镇静药。He can perform an astonishing variety of acts, including mime and juggling.他能表演好几种令人惊叹的把戏，包括哑剧和玩杂耍。Sean's a fast thinker, and he acts on impulse.肖...
他靠教书与从事新闻工作谋生。He made his living by a mixture of tutoring and journalism.谋生妙道啊！What a lovely way to earn a living.现今谋生很容易.Nowadays it is very easy to earn a living....