pin not sharp enough 别针不够锋利
His smile had no heart in it, but few eyes were near enough or sharp enough to detect that.
他的笑容里没有一丝一毫的感情，但很少有眼睛能近距离或敏锐地察觉到这一点。
youdao
The knife is not sharp enough and need grinding.
这刀不快，需要磨了。
The Downing Street operation is not sharp enough.
唐宁街的举措并不十分有效。
"This needle is still sharp enough to penetrate through body tissue.
VOA: special.2010.02.10
Critics complain that the enforcement efforts to date lack sharp enough teeth to discourage future abuses.
FORBES: Magazine Article
These edges are actually sharp enough to become uncomfortable with prolonged, firm gripping.
ENGADGET: HTC Desire X review: one last hurrah for a former flagship?
The writing is sharp enough that the humor doesn't need to be forced.
CNN: STORY HIGHLIGHTS
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