carry the load什么意思A mere hundred species are the basis of our food supply,of which but twenty carry the load. 帮忙翻译一下这句话啊!~

carry the load什么意思A mere hundred species are the basis of our food supply,of which but twenty carry the load. 帮忙翻译一下这句话啊!~
carry the load什么意思
A mere hundred species are the basis of our food supply,of which but twenty carry the load.
帮忙翻译一下这句话啊!~

carry the load什么意思A mere hundred species are the basis of our food supply,of which but twenty carry the load. 帮忙翻译一下这句话啊!~
有近百物种构成人类食物来源,其中主要来源只有20种
carry the load,担负,承载,在这里表示担负主要食物来源的物种

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