I stumbled along in the dark, trusting to luck to find the right door.

我摸黑跌跌撞撞地往前走，全凭运气去找对门。

《牛津词典》

This is due to the forms, contents and environment of test as well as the inadequacy of testee's preparation for the test and their idea of trusting to luck.

紧张心理的出现既有应试者自身准备不充分，存在侥幸心理等方面的主观原因，也有外部因素如测试的形式、内容、环境等造成的影响。

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