1·到2008年，638名员工请了“父亲月度产假”。
Then in2008, 638 employees took the “father months.”
2·总的来说，阿司匹林组中638人中有116人18.2%出现了终末事件。
Overall, 116 (18.2 per cent) of 638 primary events occurred in the aspirin groups.
3·与此比较，在非阿司匹林组中638人有117人出现了终末事件。（危险比率为0.98）
This compared with 117 (18.3 per cent) of 638 in the non-aspirin groups (hazard ratio was 0.98).
4·他们调查了638个患白血病的儿童，重点是其中620个，得出这个研究结论。
The study investigated 638 children with acute lymphoblastic leukemia (ALL) and 620 controls and concluded that their study.
5·我们从十月份就开始发offer了，现在已经招到 1638名学生，去年这个时候，只有1096个人。
We’ve been making offers since October, and we’ve already had 1, 638 students say yes, compared to 1, 096 at this time last year.
6·福特在6月30号声称，若不计一次性项目，本季度的经营损失为6.38亿美元，而去年同期的亏损额为14亿美元。
Ford reported a loss of $638 million, before special items, in the quarter that ended June 30, compared with a $1.4 billion loss in the same period a year ago.
7·唐贞观十二年（公元638年），中国禅宗六祖惠能大师诞生在岭南新州，即现在的广东省新兴县。
In 638 AD (Tang Dynasty), the Sixth Patriarch of the Chinese ZEN Buddhism, Master Huineng, was born to Lo family in Xinzhou, Lingnan (nowadays Xinxing County, Guangdong Province).
8·方法：在欧洲社区呼吸健康调查(1991 ~ 1993)研究中，对638名哮喘患者(20 ~ 44岁)进行队列研究，随访期从1998 ~ 2002年。
METHODS: an international cohort of 638 subjects with asthma (20-44 years old) was identified in the European Community Respiratory Health Survey (1991-1993) and followed up from 1998 to 2002.
9·方法采用多阶段抽样方法，随机抽取638名调查对象进行个案调查并采集血液标本分离血清，用血凝抑制（HI）方法对标本进行检测。
Methods Using multi-level sampling method, 638 subjects were selected randomly and surveyed. The serological specimens from 638 subjects were separated and detected using haemoglutinin inhibition(HI).