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to bear; to stand; to endure; to put up with
to restrain; to control; to keep a check on
to forgive; to put up with; to pardon
悲しみの涙をこらえて笑顔を見せた。
I held back tears of sadness and put on a smile.
悔しさを必死にこらえて最後まで笑顔を保った。
Desperately enduring the frustration, they maintained a smile until the very end.
歯の痛みをこらえている間に額に汗がにじんだ。
While enduring the toothache, sweat beaded on my forehead.