先试解释一下问题再作回答。Try to paraphrase the question before you answer it.我反对不先试一下闸就骑机动脚踏两用车。I would advise against riding moped without testing the brakes first .这就是为什么要先试梅花的道理.That is why the clubs should be tested first....

“先试”的英语可以翻译为：foretaste ...