经济学人下载: 清理海洋垃圾 (2)

1.beneath 在...下方
Four levels of parking beneath the theatre was not enough.
剧院底下的四层停车库还不够。
2.float 使漂浮
They noticed fifty and twenty dollar bills floating in the water.
他们注意到水中漂浮着一些50和20美元的纸币。
3.dispense with 免除；无需使用
More modern heating systems dispense with the need for a tank.
更现代化的取暖系统不再需要水箱。
4.monitor 监控
Officials had not been allowed to monitor the voting.
官员们未曾获许监控选举。