The beetle is mainly spread by trade, because it cannot fly.
该甲虫主要通过贸易往来扩散，因为其本身没有飞行能力。
The amount of trade conducted electronically has grown extraordinarily since the spread of the Internet.
所进行的贸易总额增长非常电子自互联网的普及。
The amount of trade conducted electronically has grown extraordinarily since the spread of the Internet.
所进行的贸易总额增长非常电子自互联网的普及。
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