他的自行车的后胎被扎破了。
从2016年开始，实行二胎政策。
在我看来，二胎政策是好的。
有些夫妇愿意生二胎。
“二胎”政策宣布了。
二胎政策是必要的。
我们的车爆胎了。
这些轮胎磨损得已低于胎面1.6毫米的法定厚度。
The tyres were worn below the legal limit of 1.6mm of tread.
如果这是你的第一胎，你就非常有可能会太早到医院。
If this is your first baby, it's far more likely that you'll get to the hospital too early.
她的轮胎爆胎了。
熊猫每胎产仔一、二只。
红鲑鱼终生只产卵一胎。
如果没有限制了，我想我也不会要二胎。
I don't think I'll have a second child if the limit is removed.
一般说来，狼一胎能产下四到六只幼崽。
我不太清楚，但这胎只用了2500英里。
I don't understand it, but the tire only has about 2500 miles on it.
一胎多仔的动物一次生的后代。
我甚至不确定“胎液”到底指的是什么。
假如你们需要一条新胎我们明天可以给你们带来。
妻子现在怀着第一胎，所以他们想要个更大的房子。
She is expecting their first child, and so they are looking for a bigger place.
如果夫妻俩都是独生子女，那么他们也可以生第二胎。
Couples who are both only children can also have a second child.
大部分好的育种家在一年里只计划一胎或两胎小狗。
第一胎是女孩的农村夫妇也可以生育第二胎。
Rural couples are allowed a second child if their first is a girl.
提问：那么在路面湿滑的情况下用干胎是怎么样的情况？
不过如果仅看第一胎，这一比率也“只有”108。
But if you take first births alone, the ratio is "only" 108.
胎便正在她的肠内累积，这将成为她出生后第一次排出的物质。
Meconium is accumulating in her bowel and will become her first dirty diaper after birth.
泰勒夫妇有一个七岁的男孩，名叫帕特。现在泰勒太太正怀着第二胎。
Mr.and mrs.taylor had a seven year old boy named pat.now mrs.taylor was expecting another child.
我们被告知第一胎婴儿可能不会按预定的时间出生，或早几天或晚几天。但是我们怎么也没想到孩子居然在我和父亲生日这天出生了。
We were told first babies rarely arrive on their due day, they can be early and late so we never thought for a moment that the baby would be born on mine and my dad's birthday.
我们被告知第一胎婴儿可能不会按预定的时间出生，或早几天或晚几天。但是我们怎么也没想到孩子居然在我和父亲生日这天出生了。
We were told first babies rarely arrive on their due day, they can be early and late so we never thought for a moment that the baby would be born on mine and my dad's birthday.
我们被告知第一胎婴儿可能不会按预定的时间出生，或早几天或晚几天。但是我们怎么也没想到孩子居然在我和父亲生日这天出生了。
We were told first babies rarely arrive on their due day, they can be early and late so we never thought for a moment that the baby would be born on mine and my dad's birthday.
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