The acid gnaws at the metal.
酸腐蚀金属。

The sea urchin, in water, gnaws away at encrusting algae.
海胆在啃食身体外的藻类植物。

The King is angry. See, he gnaws his lip.
国王生气了。看吧, 他咬着自己的嘴唇。

A rat who gnaws ata cat's tail invites destruction.
咬猫尾巴的老鼠自寻毁灭。

Rust gnaws away steel.
锈腐蚀钢材。

The worm that gnaws on the bean is the one inside the bean.
啃豆的儒虫是豆里面的虫子。

While the dog gnaws bone, companions would be none.
狗啃骨头无同伴。

While the dog gnaws the bones, companions would be none.
狗啃骨头，不需同伴。

The behavior that small favor gnaws a steamed bread midday was caused coach the attention of class teacher.
小德中午啃馒头的行为引起了辅导班老师的注意。

A man estranged from his wife is convinced that he has a live serpent inside him which perpetual gnaws at him.
一个和妻子疏远的男人相信体内有一条活蛇常常在咬他。

Face this bone that gnaws hard, police of custom suppress smuggling spreads out meticulous investigation.
面对这块难啃得骨头，海关缉私警察展开细致得侦查。

Missing gnaws the pain to hold one kind inexplicably to pace back and forth innocently in my side.
思念啃着痛含着一种莫名的无辜在我身边徘徊着。

Sorrow gnaws at the human heart.
又如碱上倒醋。