This is a stress sniff test devised by scientists.

这是科学家们设计的一项 “压力嗅探测试”。

Offal spoils quickly; if it passes the sniff test, the meat is good.

内脏极易腐烂;如果闻上去没有异味，就是块好肉。

We'll see. I'll give it the sniff test.

走着瞧。 我会给它嗅探测试。

(In January, Father Christmas's elves must conduct " sniff tests" to see if a garment has been worn.) Increasingly, retailers are charging shoppers to return goods.

（在一月份，圣诞老人的精灵们必须进行“嗅觉测试”，检查衣服是不是全新的。）越来越多零售商对购物者退货收取费用。