1. A new system allows a combine harvester, say, to send a call over to a tractor-trailer so the driver can unload the grain as and when necessary. 例如，一种新的系统允许联合收割机向牵引拖车发送呼叫，以便司机可以在必要的时候卸载谷物。
2. Shall I call over the articles one by one? 要我把物品名称逐一念一遍吗？
3. Themost common-used method is to call over. 最常用的方法是点名。
4. In the midst of his anguish, there is a call over his. 在他的极度痛苦中，他的步话机响了。
5. In the midst of his anguish, there is a call over his radio. 正当他在悲痛之时，他的电台传来一阵呼叫。
