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- Dogs and cats can be desexed from 8 weeks of age. 8周开始就可以了。听说，也要看一下体重。
- At two weeks of age, he was moved outdoors. 当小威伯二个星期大时;他被搬到户外.
- FRONTLINE Top Spot is approved for use on puppies and kittens 8 weeks of age or older. 虽然福来恩是国内常见的目前比较安全的外用去虱药物，但是滴剂使用在未满月的幼猫身上，这也是不妥当的.
- Training the show potential Mini Schnauzer puppy is best begun in his first few weeks of age. 教育迷你髯狗小狗最好地在他的第一个几星期的年龄中被开始的表演潜能。
- Piglets are normally weaned at around 4 weeks of age which is an optimum time for both the welfare of the sow and the piglets. 小猪通常在4周左右时断奶，对母猪与小猪来说这是最适宜的时间。
- Male weaning hamsters at 3 weeks of age were fed either casein (CAS) or soy protein isolate (SPI) semipurified diet for 4 weeks (phase 1). 摘要出生三周刚断奶的雄性的田鼠，喂食含酪蛋白或大豆蛋白的半合成饲料四周（第一期），然后转为给予普通饮食（第二期）一周（实验一）或四周（实验二）；
- I started giving it to my daughter at 5 weeks of age when I stopped nursing.At first, I gave it to her in a medicine dispensing pacifier. 当我停止母乳后就开始把它给我5周大的女儿服用，我把它混合在药物中给她服用，但总是弄的满脸都是。
- A puppy should never be adopted before six weeks of age, the interaction occurring within the litter at that time is too critical to a puppy's development. 一只幼犬永远不应该在满六周以前被带去新家,在这段时间内幼犬和他的兄弟姐妹之间的相互影响对于他的成长来说是必不可少的。
- He got paid a piffling sum after weeks of work. 他工作数周所得甚微。
- One reason that puppies should not be separated from their mother and littermates before 8 weeks of age is that they learn core behaviors from mother dog and siblings. 8周前狗狗不应该和母亲还有兄弟姐妹们分离的一个重要原因是，他们正在从妈妈同伴哪里学习核心的行为。
- He was disqualified for the post on account of age. 年龄不合格使他无法无资格任此职。
- The surest way to avoid parvo infection in your dog is to adhere to the recommended vaccination schedule which begins when puppies are 6-8 weeks of age. 最确信能避免细小感染你的狗的方法是坚持你狗狗出生后6-8周开始的免疫计划。
- The knockouts were obese and loved to eat: by 10 weeks of age, PYY knockout mice weighed about 37.5% more than normal mice and had about 12% more body fat. 敲除小鼠体重肥胖且酷爱进食。10个星期大小的敲除小鼠要比它们的正常同类重37.;5%25，体内脂肪也要多12%25
- Syrian Hamsters will not, therefore, usually tolerate the company of another hamster once they reach approximately 6-10 weeks of age when fighting starts to occur. 通常在6-10个月后，住在一起的叙利亚仓鼠就会开始互相打架，一开始也许不是很严重，但是随着它们越来越大，打架的次数会越来越多，受伤程度也会越来越深。
- Dachshund (longhaired) - usually occurs between 8 and 12 weeks of age, and causes urinary incontinence, loss of pain sensation all over the body, and penis mutilation. %23[[腊肠犬]]（长毛）-通常发生于8-12周龄，导致尿失禁、全身疼痛感缺失和自残阴茎。
- Is your younger sister of age yet? 你妹妹成年了吗?
- His latest record was a smash hit within a week of being released. 他最近的一张唱片发行一个星期就非常受人欢迎。
- Her careful make-up hid the signs of age beneath. 她的精心化妆掩饰了脂粉下面岁月刻下的痕迹。
- She looked pale and drawn after weeks of sleepless nights. 她经历了数周不眠之夜，看上去脸色苍白，形容憔悴。
- The prize was up for grabs to anyone under16 years of age. 任何16岁以下的人都可以参加这场奖品的争夺。
