The child started to sob when he couldn't find his mother.孩子因找不到他妈妈哭了起来.A sob caught in his throat.他泣不成声。She nodded with a sob.她啜泣着点了点头.She began to sob again, burying her face in the pillow...她把脸埋在枕头里，又开始抽噎起来。He of...
迟疑不定的感受a feeling of doubt and uncertainty这场大雨也许能使变幻不定的天气稳定下来.The heavy rain might settle the changeable weather.他经历过很多漂泊不定的生活.He has knocked around quite a bit....
Diamonds have extreme resistance to abrasion.钻石极抗磨损.Erosion of pipes and vessels from abrasion by particles can be serious.由于固体颗粒的磨蚀作用,管子和容器的磨损严重.Abrasion also abets wind erosion.磨损作用也助长了风的侵蚀....