Zanzibar and Nairobi are now four weeks old and eating worms.
桑给巴尔和奈洛比(两只小沼狸的名字)现在四周大并且开始吃虫子了。
These homing pigeons begin their training when they are about four weeks old.
信鸽在出生大约满4周时就进行训练。
They were only about four weeks old, and had beautiful gray-striped bodies and large, frightened eyes.
它们只有大约4周大，一身漂亮的灰条纹，大眼睛惊恐不安。
In 2009 3.3m children died before they were four weeks old, down from 4.6m in 1990, according to a new paper from the World Health Organisation.
来自世界卫生组织一份新的报告显示，2009年，330万儿童出生后不到四周死亡，这比起1990年的460万有所下降。
For his first Chinese New year semester break, my6-year-old son was given 42 pages of math and 42 pages of Chinesehomework to complete in four weeks.
我6岁儿子在春节放假的四周内要做42页的数学题和42页的语文题。
In recent weeks, the 84-year-old has returned to the public spotlight, after spending four years as a near-recluse with an unspecified intestinal ailment.
一个花了四年时间和肠道疾病做斗争的隐士，84岁的他最近几个星期又回到了公众关注的焦点。
For his first Chinese New year semester break, my 6-year-old son was given 42 pages of math and 42 pages of Chinese homework to complete in four weeks.
在我6岁的儿子第一个春节前后的寒假期间，他拿到42页的算术和42页的语文功课，要在4周内完成。
The human body regrows its outer layer of skin every two to four weeks, and bits and pieces of the old skin break off - to become dust.
人体皮肤外层每2至4周更新一次。老化的皮肤将会脱落，成为灰尘的一部分。
They also found that 34-week-old fetuses can store information and retrieve it four weeks later.
他们还发现34周大的胎儿能够存储信息四周并回忆起。
What with lying on the rocks four days at Louisville, and some other delays, the poor old 'Paul Jones' fooled away about two weeks in making the voyage from Cincinnati to New Orleans.
哎吆！在路易斯维尔的礁石上系泊了四天，在别处又耽搁了些日子，可怜又老气横秋的“鲍尔-琼斯”轮从辛辛那提到新奥尔良这段航程浪费了约两个星期的宝贵时间。
In four weeks I was my old self again.
四个星期后我就彻底康复了。
But I understand her, her 47-year-old, two weeks ago, she and her boyfriend broke up, Although a woman to break, but, but they have lived through four years time.
但我理解她，她47岁，两周前，她和男友分手，尽管是女人提出分手，但是，4年的时光不是简单的分手便能从生命中割舍。
Then she gave me another precious gift: the letter my twenty-three-year-old mother had written on her birthday to her friend, three weeks after my father's death, more than fifty-four years earlier.
然后，她又给了我一份珍贵礼物：我母亲23岁生日那天写给她朋友的信。当时距我父亲去世才三周，离现在则已超过54年之久。
Then she gave me another precious gift: the letter my twenty-three-year-old mother had written on her birthday to her friend, three weeks after my father's death, more than fifty-four years earlier.
然后，她又给了我一份珍贵礼物：我母亲23岁生日那天写给她朋友的信。当时距我父亲去世才三周，离现在则已超过54年之久。
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