| 单词 | 通过反复试验 |
| 例句 | DEFINITIVE EXAMPLES 权威例句〔TRY〕We found out by trial and error which plants could survive the dry conditions. 通过反复试验，我们知道了哪些植物能够在干旱的环境下生存。朗文写作活用〔trial〕Many drugs were found by trial and error.很多药物都是通过反复试验才发现的。柯林斯高阶 |
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