日批在线视频_内射毛片内射国产夫妻_亚洲三级小视频_在线观看亚洲大片短视频_女性向h片资源在线观看_亚洲最大网

文字稿:

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 詞匯:

appetising 美味可口的

bugs 昆蟲

supplement 增補，補充

edible 可食用的

industrial-scale 大規(guī)模的