Both atria are thinwalled muscular chambers.两心房是由薄壁构成的空腔.Yet on maximal vagal stimulation, both atria and ventricles come to a standstill.然而,以最大刺激作用于迷走神经时, 心房和心室都停搏.The combined contraction of the atria and ventricles is...
蕾特别喜欢咯咯地笑，而且总是爱开玩笑。Ray was very giggly and joking all the time.李森科说笑话的时候自己咯咯直乐。Lysenko gave a deep rumbling laugh at his own joke.我在胳肢他，他哈哈哈、咯咯咯地笑个不停。I was tickling him, and he was laughing and giggling....
Europeans take melons for a preventive against seasickness.欧洲人吃瓜作为预防晕船的方法.He was very prone to seasickness and already felt queasy.他快晕船了，已经感到恶心了。Sally always suffers from seasickness when she is at sea.萨莉每次出海会晕船....