| 例句 |
The drainage system needs careful construction.排水系统需要精细的构造。The drainage system consisted of a few open ditches to facilitate run-off.排水系统包括几条方便排水的明沟。This area was very marshy before the drainage system was installed.安装排水系统前，这一地区非常泥泞。The drainage system has collapsed because of too much rain.因为雨量过大，排水系统崩溃了。The drainage system has collapsed because of too much rain.由于降雨过多，排水系统已经彻底瘫痪了。 |