The cat sat in front of the bird cage in an agony of frustration at being so near and yet so far.
猫无可奈何地坐在鸟笼前, 眼看着鸟儿近在咫尺, 可怎么也够不着。
It's healthier to release frustration than to bottle it up.
受挫折后发泄一通比强忍着对身体有益。
He ground his teeth (together) in frustration.
他因失败而把牙咬得咯咯响.
