|
279. There are instances when one must abandon the tendency for self-prevention in order to assist a person in grave danger . 存在这样的情况：为了帮助处于严重危险中的人，一个人必需抛弃自保的倾向。 280. There are situations in which its highly advisable for a person to control his/her temper and keep his/her mouth shut . 有些情况下，一个人控制住自己的脾气并保持沉默是明智的。 281. Gone are the days when Chinese people could expect cradle to death support from the government . 中国人可以指望政府提供从出生到死亡的资助的日子已经不复存在了。 282. The days when one could safely walk city streets at night are gone . 一个人可以在夜里安全地走在城市街道上的日子已经过去了。 283. Chinas population almost doubled to 1.2 billion people during the 1955-1995 , according to the National Census Bureau . 根据全国人口普查局的数据，中国人口在1955年至1995年期间几乎翻了一番，增加到12亿。 284. A report by the Department of Education estimates that the student-teacher ratio in China is four times higher than in the United States . 教育部的一份报告估计中国的学生和老师的比例比美国高四倍。 | 
