4周搞定2000+托福核心词
浓缩的;集中的;全神贯注的v. concentrate的过去式和过去分词
concentrated
常考释义
The seed has an outer coating that surrounds the genetic material of the new plant, and inside this covering is a concentrated supply of nutrients.
种子有一层裹在遗传物质外面的表皮,在表皮里面是一种浓缩了的营养物质。
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