他生于1650年前后，但身世不详。
这是一个研究小组对学校干预措施实行前后仔细评估得出的结论。
This comes from carefully conducted 'before and after' evaluations of interventions in schools, monitored by a research team.
她坐在摇椅上前后摇晃着。
人们手拉手前后摇摆着。
最后一步是将蒸汽引入气缸，使得活塞前后推动，从而提高了发动机的速度，降低了燃料消耗。
The final step came when steam was introduced into the cylinder to drive the piston backward as well as forward, thereby increasing the speed of the engine and cutting its fuel consumption.
我们被要求调查他证词中所称的前后矛盾之处。
We were asked to investigate the alleged inconsistencies in his evidence.
当他屈尊讲话时，半小时内有三四次前后矛盾。
When he condescended to speak, he contradicted himself three or four times in the space of half an hour.
玛丽，我们要不要前后晃来晃去，就好像我们是托钵僧似的？
Shall we sway backward and forward, Mary, as if we were dervishes?
在开学的第一天，苏格拉底告诉他的学生：“今天，我们只学一件事情。那就是前后摆动你的手臂。”
On the first day of school, Socrates told his students, "Today, we'll only learn one thing. That is to swing your arm forward and backward."
处理生鸡蛋的前后都要洗手。
注意你的重心是如何前后左右调整以保持平衡。
Notice how your weight moves from side to side or front to back as you balance.
在处理生海鲜前后记得用热肥皂水彻底搓洗你的双手。
Scrub your hands thoroughly with hot, soapy water before and after handling raw seafood.
婚姻登记处处长表示，在七夕前后，他们将延长办公时间。
The director of Marriage Registry Office says they will extend opening hours around Chinese Valentine's Day.
比赛前后奥运村和所有的体育场馆都将便于残疾人进出。
The Olympic Village and all of the stadia will be fully accessible both during and after Games.
在处理肉类和家禽前后，要清洗双手、厨具、砧板和其他表面。
Wash your hands, utensils, cutting boards, and other surfaces before and after handling meat and poultry.
它的立体摄像机眼睛前后转动，将房间里的物品尽收眼底。
Its stereoscopic camera eyes swivel back and forth, taking in the contents of the room.
在分娩前后和分娩期间，熟练的护理可挽救妇女和新生儿的生命。
Skilled care before, during and after childbirth can save the lives of women and newborn babies.
你不只要记录你所吃的食物，还应该意识到你吃东西的前后感觉。
Not only do you need to track the food you eat, but you should also be aware of how you feel before and after eating.
对大小写没有限制，但前后要保持一致，以免造成混乱。
这样不仅节省前后打包清理的时间，也省下了搬挪费用。
Not only did it save time packing and unpacking unwanted goods but it also saved us money moving it.
希西家倚靠耶和华以色列的神，在他前后的犹大列王中没有一个及他的。
Hezekiah trusted in the Lord, the God of Israel. There was no one like him among all the Kings of Judah, either before him or after him.
小孩子并不需要花很多时间去学习这个，只是要公平和前后如一。
It doesn't take long for kids to learn this. Just be fair and consistent.
前后加起来，我在北京已经住了四十多年，算是一个老北京了。
尽管这个大块头预计在圣诞节前后会关一会，但新年过后又将重启。
Although the LHC is expected to close down briefly over Christmas, it is scheduled to reopen early in the new year.
房子都很小，但是每所房子都配有带草坪的前后院子，街道宽阔，没有高楼。
The houses were small, but each had a front and back yard with grass, the streets were wide, and there were no tall buildings.
所有的蚂蚁都在上上下下、前前后后、来来回回地跑着寻找美食。
All the ants raced here and there, up, down, and to and fro.
它自身就足以成为自足的表达敬意之语，因此难以泯然融入前后语境。
It stands out by itself as a self-contained statement of respect, and is thus difficult to weave into the surrounding text.
但奥斯特勒的观点是：到2050年前后，世界将不再需要全球性的通用语言。
Yet Ostler takes the view that by around 2050 no global lingua franca will be needed.
但奥斯特勒的观点是：到2050年前后，世界将不再需要全球性的通用语言。
Yet Ostler takes the view that by around 2050 no global lingua franca will be needed.
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