- 相关例句
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Trade frictions between the two countries had been caused by trade protectionists.
两国间的贸易摩擦是由贸易保护主义者引起的。
辞典例句
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" I've just arrived by train,'she said. " I'm coming to see you. "
“ 我刚刚乘火车到达这里, ” 她说道. “ 我来看你. ”
《用法词典》
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Specific behaviour must be determined by trial and error.
特殊的行为必须是通过探索试验来决定.
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They didn't know how to put in a central heating system, but they managed it by trial and error.
他们不知道怎样安装集中供暖设备, 但是经过反复试验终于安装好了.
《简明英汉词典》
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Many drugs were found by trial and error.
很多药物都是通过反复试验才发现的。
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