knock against

基本解释

I am not using LeBron's example as a knock against his game, only as a clear and pertinent demonstration.
我并不是在用勒布朗-詹姆斯的例子来反对他的比赛，我只是在用它来说明一些相关的实证。
kobe-jicfaen.blog.163.com
So of your home, wrought iron products is knock against, once appear, the paint falls off, will immediately, the use of "repair paint" repair, or it will rust.
所以您家的铁艺制品被磕碰后，一旦出现了漆皮脱落，就要立即使用特制的“修补漆”修补，以免生锈。
"Rafa got a knock against Arsenal, but hopefully he'll train today, " the boss told reporters at Friday's pre-match press conference.
“拉斐尔踢阿森纳的时候受伤了，他希望他今天能恢复训练，”老板在周五赛前记者会上说。
forum.sports.sina.com.cn

Perhaps the biggest knock against the device though, is the rather lackluster 4-inch WVGA screen.
ENGADGET: Samsung Galaxy Rugby Pro for AT&T hands-on Mobile