My language skills improved over time.
这是高中英语新教材译林版必修1第1单元的句子(p12)。
请问句子中的 over time 为什么没有冠词?
over time 是习语,中间不用任何冠词,意思是“随着时间的推移慢慢地”。如:
Things will get better over time. 情况会慢慢好起来的。
Michael’s teeth had yellowed over time. 迈克尔的牙齿已经逐渐变黄了。
The screws had worked loose over time. 随着时间过去,螺丝已经松了。
Over time, developers subdivided the land. 开发商们逐渐地又把这块土地细分了。
The rocks have eroded away over time. 随着时间的流逝,岩石慢慢风化。