一遭

wǒ gàn zhè yàng de chāi shi què shí yě shì tóu yī zāo

我干这样的差使确实也是头一遭。

It's certainly the first time I've had an assignment of that kind.

màn bù yī zāo gé wài shén qīng qì shuǎng

漫步一遭，格外神清气爽。

A walk through was particularly exhilarating activities.