重点讲解:
1. at risk of 处境危险;有风险的;在危险中;
A suppressed immune system puts a transplant recipient at risk of other infections.
接受器官移植的病人免疫系统受到抑制后很可能会感染其他疾病 。
2. no doubt 无疑地;必定;
He's made some great movies. There's no doubt about it.
他拍了一些非常出色的影片 。这一点是毫无疑问的 。
3. be rich in 富含…的;含有大量…的;
Liver and kidney ar e particularly rich in vitamin A.
肝脏和肾脏的维生素A含量尤其丰富 。
4. be different from 不同的;有区别的;有差异的;
American English is significantly different from British English.
美国英语与英国英语有很大差异 。