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Transcript:
To some, they may not seem very appetising.
But these bugs could be part of the solution in the fight against world hunger.
That's according to the United Nations, which says two billion people already supplement their diets with edible insects.
The UN says industrial-scale insect farming could ensure future global food security.
Vocabulary:
appetising adj. 促进食欲的；美味可口的
bugs n. 臭虫，小虫
supplement vt. 增补，补充
edible adj. 可食用的
industrial-scale 巨大的
