An eight-week-old embryo is only an inch long.

一个8周大的胎儿仅1英寸长。

《柯林斯英汉双解大词典》

She had been unable to sleep for three days because of her 13-week-old son's crying.

由于她13周大的儿子的啼哭，她3天没睡着觉了。

《柯林斯英汉双解大词典》

Eight years ago, one-week-old Diandian was left behind.

八年前，一个星期大的点点被遗弃了。

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This week on our program, we bring you some laughs from old-time American radio shows.

VOA: special.2009.03.09

instead, he threw in a six-week-old puppy and said "keep it!" and ran away. So I got a puppy.

但他却扔进来了一只六个月大的小狗，说“养它吧！”然后跑掉了。于是我有了一只小狗。

大城市是否危险？ - SpeakingMax英语口语达人

This week on our program, we go to New York City to visit the thirty-five year old Nuyorican Poet's Caf on the Lower East Side of Manhattan.

VOA: special.2009.04.27

March Comex silver futures prices are also in a three-week-old uptrend on the daily bar chart.

FORBES: Comex Gold Weaker On Corrective Pullback From Recent Gains

March Comex silver futures prices are still in a four-week-old uptrend on the daily bar chart.

FORBES: Comex Gold Weaker On More Profit Taking, Consolidation

Technically, February Comex gold futures prices are in a four-week-old uptrend on the daily bar chart.

FORBES: Comex Gold At 6-Week High Amid "Risk On" Trading Day Monday