例句： If we interfere, it may do more harm than good.

例句： The universe is slowly yielding up its secrets to scientists.

例句： an unfortunate lack of good manners.

例句： She levelled the surface of the cake mixture with a metal spatula.

例句： The corn ripens in the sun.

例句： I am happy to clarify any points that are still unclear.

例句： They jumped for joy.

例句： The boys were spitting out of the train window.

例句： The government will garrison the coastal towns.

例句： The tortoise crept along at an agonizingly slow speed.