With a low-pitched rumbling noise, the propeller began to rotate.伴随着隆隆的低沉噪声，螺旋桨开始旋转起来。Lysenko gave a deep rumbling laugh at his own joke.李森科说笑话的时候自己咯咯直乐。The crane made rumbling sound.吊车发出隆隆的响声....
Tranquillizers help alleviate the distressing symptoms of anxiety.镇静剂有助于缓解焦虑所带来的不安症状。Take one of the tranquillizers; it will settle your nerves.吃一片镇定药吧, 它会安定你的神经.His doctor took him off tranquillizers.医生让他停止服用安定药....
他连着四任当选.He was reelected for four consecutive terms.教师连着讲了两遍.The teacher explained twice in succession.当被电击者还连着电时，千万不要把水弄到电击伤口上。Never apply water to a burn from an electric shock while the casualty is still in contact wi...
We do not know which behavioural traits are inherited and which acquired.我们不知道哪些行为特征是遗传的,哪些是后天养成的.How these behavioural changes come about was, until recently, obscure.这些行为改变是如何产生的至今仍让人费解.For many years behavioural econo...