a leap in the dark

It's only a leap in the dark.

这只是一次冒险.

You took a leap in the dark in going into partnership with this strange man.

你与这陌生人合作实在是莽撞.

The action is a leap in the dark.

这是一次冒险行动.

He would not advise everyone to take a leap in the dark.

他不会主张任何人贸然行动.

The experiment was a leap in the dark.

这项实验实在是冒险.

Jim is fond a leap in the dark.

吉姆喜欢在黑暗处跳跃.

Her marriage to John was a leap in the dark.

她与约翰结婚是贸然行动.

It would be a leap in the dark to go straight into production without testing.

不做测试、直接生产是很冒险的行为.

Their move to Latin America was a leap in the dark.

他们迁居拉丁美洲是件冒险的事.

Jim is fond of a leap in the dark.

吉姆喜欢冒险行事.

Prudent people are not going to take a leap in the dark.

小心谨慎的人是不会轻易冒险的。