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。
许多已经生过一个健康快乐的小孩的夫妇，正面临着一个两难的困境，即要不要生二胎。
Many couples, who already have one healthy, happy child, are facing a dilemma, namely, the issue of whether or not to have a second child.
也就是说，到2050年，国家将非常需要劳动力。随着“二胎”政策的实施，出生率的增加可以解决这个问题。
That is to say, the country will be in great need of labor by the year 2050. With the "two children" policy, an increase in births can solve this problem.
一辆向南行驶的卡车爆了胎而且撞了车。
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.
非同卵双生胎是两个受精卵同时在子宫着床的结果。
Non-identical twins are the result of two fertilized eggs implanting in the uterus at the same time.
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.
在中国，只有一个孩子的夫妇可以生二胎。
A couple who have only one child are allowed to have a second baby in China.
她的轮胎爆胎了。
当蜜蜂第一次飞行时，它会立刻释放出气味浓烈的胎粪。
When a honeybee takes its first flight, it immediately releases its strong-smelling meconium.
据报道，中国政府计划取消独生子女政策，并开放二胎政策。
It was reported that the Chinese government plans to end its one-child policy and instead let families have two children.
在1970年代后期，在文盲母亲所生的孩子中，婴儿死亡率约为每1000名活胎婴儿中有110个夭折。
In the late 1970s, the infant mortality rate for the children of illiterate mothers was around 110 deaths per thousand live births.
熊猫每胎产仔一、二只。
红鲑鱼终生只产卵一胎。
目的是探讨母胎细胞转运与乙型肝炎病毒（HBV）宫内感染的关系。
The objective is to study the relationship between fetomaternal cellular traffic and hepatitis B virus (HBV) intrauterine infection.
我的备用胎爆了，请修理一下。
我的备用胎爆了，请修理一下。
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