但是，中国的人口数量，是美国、欧洲、日本、澳大利亚和俄罗斯等所有发达国家的总和。

But China has as many people as the combined populations of all developed countries including the us, Europe, Japan, Australia and Russia.

youdao

许多发达国家(如美国、欧洲和加拿大等)已把大气中BTEX作为常规监测内容，并规定了其空气质量标准。

Therefore, many developed countries (for example the US, Europe and Canada and so on) take BTEX in the atmosphere as the routine monitoring content, and has stipulated its strict air quality standard.

youdao

许多发达国家(如美国、欧洲和加拿大等)已把大气中BTEX作为常规监测内容，并规定了其空气质量标准。

Therefore, many developed countries (for example the US, Europe and Canada and so on) take BTEX in the atmosphere as the routine monitoring content, and has stipulated its strict air quality standard.

youdao