- 重点词汇
- 相关例句
Measuring the gradual loss of soil requires scientific techniques and equipment.
监测土壤的逐渐的流失需要科学技术和设备.
词典精选例句
The whole drum rotates at a steady speed of about sixty revolutions per second.
整个磁鼓大约以每秒60转的恒定转速旋转.
词典精选例句
Protective measures are necessary if the city's monuments are to be preserved.
要保存城市古迹必须采取一些维护性措施。
《柯林斯高阶英汉双解学习词典》
