negative guarantee的意思|示意

A negative guarantee. The opposite of an advertisement.

一份负面的保证，能起到相反的广告作用。

Mrs. Waldo is accidentally demonstrating a drawback of 2pc: database locks are needed to guarantee isolation and this can have negative consequences for data access (and concurrency).

waldo夫人正意外地展示2pc的缺点：需要数据库锁来保证隔离，但这样可能对数据访问(和并发)有负面影响。

Monogamous relationships don't guarantee absolute safety unless you've both been tested and are HIV-negative.

一夫一妻制不能绝对保证安全，除非你们都检查过身体且HIV都呈阴性。