Perhaps half of U.S. farm laborers are undocumented immigrants.

美国约半数的农场劳工是无证移民。

Our bodies hold roughly ten pints of blood.

我们的身体约有脱的血液。

Having a bath uses about twice as much water as taking a shower.

浴缸浴所用的水约是淋浴的两倍。

That process could take about a year.

这个过程可能需要约一年的时间。

About four years ago. And you're living with your children now?

是的，约四年前走的。

Paper straws can cost about eight times more than plastic straws.

纸质吸管的价格约是塑料吸管的八倍。

They were about 150 times the size of a chicken egg.

它们的小约是鸡蛋的 150 倍。

That gives you about three weeks to decide.

这约三周的时间来决定。

We harvest and sell probably two tons of food every week.

我们每周收获并出售约两吨的食。

About half of the fires have been in the Amazon.

约一半的火灾发生在亚马逊地区。

About half of U.S. adults have high blood pressure.

约一半的美国成年人患有高血压。

If someone asks me the price, I might give a ballpark figure or a ballpark estimate.

如果有人问价格，我会出a ballpark figure(约的数字)或ballpark estimate(概的估计)。

Luna's diameter is roughly one quarter the size of Earth, measuring 2,160 miles.

月球的直径约为地球的四分之一，2160英里。

Around half the number of deaths are in the North and South America.

约一半的死亡人数出现在北美和南美。

About half of all pregnancies globally are unintended.

全世界约有一半的怀孕是意外怀孕。

About half the tickets are sold.

约一半的门票已经售出。

The gravity on Mars is only about three-eighths of that on the Earth.

火星上的重力约只有地球上的八分之三。

It is about one third the cost of local kimchi.

它的价格约是当地泡菜的三分之一。

About 80% of standard feeding bottles used worldwide contained plastic called polypropylene.

全世界使用的约80%的标准奶瓶中含有一种叫做聚丙烯的塑料。

Researchers estimated the star is about one-third the mass of our sun.

研究人员估计，该恒星的质量约是太阳的三分之一。