慢速英语:喀麦隆化学家将地沟油回收制成清洁产品
日期:2019-11-04
Words in This Story
recycle – v. to treat or process in an effort to regain material for reuse
drain – n. a pipe of hole that takes away waste liquids or water
donut – n. a small, usually ring-shaped fried cake
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