scientists have studied

scientists have studied 基本解释

科学家研究

scientists have studied 用法和例句

1、Scientists have studied on a zoology fathering mode which can turn deserted bottomland into an oasis.

科学家研究了一种生态治理模式能让荒滩变为绿洲。

重点词汇

scientists n. 科学家( scientist的名词复数 )

have aux. 用以构成完成式及完成式的不定式，表示已经… vt. 有，具有；拿，取得；从事；必须，不得不 n. 〈口〉有产者，有钱人；富国；〈英俚〉欺骗，诈骗

studied a. 有计划的, 慎重的