1.I reckoned it was a) 280 kg.

我猜测是a) 280千克。

2.Because inside, there are 100kg of plutonium.

因为石棺内有100公斤的钸。

3.We live on selling about 5kg of rice.

我们靠卖约5公斤熟米饭为生。

4.Worldwide, however, humans actually weigh 62 kg on average.

然而，在世界范围内，人类的平均体重为62kg。

5.I've lost 7 kg in the last two months.

这我已经减掉了7公斤。

6.He usually eats Angola straw, corn, typically 35kg per day.

他通常吃安哥拉稻草、玉米，每天大约 35 公斤。

7.Typical weight loss after a year is barely over 5 kg.

一般一年减重不超过5公斤。

8.In that time, we've collected and saved 1.3kg of dust.

在这期间，我们收集并保存了 1.3 公斤的。

9.After two months diligently following the program, Yao lost about 14 kg.

经过的努力，他减掉了14公斤。

10.A Gremlin drone weighs 680kg and has a wingspan of nearly 3.5 metres.

一架小精灵无人机重680公斤，翼展近3.5米。

11.She had no jaw weighed only 1.3 kg and couldn't eat or drink.

她没有下巴，体重只有1.3公斤，不能吃也不能喝。

12.The Finns on average get through an amazing 12kg of coffee a year, each.

芬兰人平均每人每年要消费12千克咖啡，很惊人。

13.It costs about $10,000 to transport 0.45kg of materials from Earth to the Moon.

把0.45公斤的材料从地球运到球大约需要1万美元。

14.Okay, so he said that it might take me two months to lose ten kgs.

他说可能需要才能减掉10公斤。

15.This means if you weigh 70kg you would require 14,000mg of caffeine to overdose.

也就是说，如果你的体重是70公斤，那14000毫克的咖啡因就算过量。

16.Zuckerberg, 39, has a height of 1.71 meters (5ft 7ins) and weighs about 70kg (11st).

现年 39 岁的扎克伯格身高 1.71 米，体重 70 公斤。

17.But to make 1kg of crickets?

那生产1kg蟋蟀呢？

18.Modern plastics are so strong that a 60 gram jug can carry 4 kg of milk.

现代塑料非常牢固，一 60 克的塑料罐可以装 4 公斤牛奶。

19.If you have only got 4kg of overweight baggage, it can be checked free of charge.

如果您只超重了4公斤，能免费托运。

20.It weighs in at 3080 kg.

它的重量为 3080 公斤。