mainlines

常见例句

• nbsp;  The train moved slowly south through flat, drab mainline scenery.
  火车穿过干线两侧风景单调乏味的地区，缓缓地向南驶去。
• The train moved slowly south through flat, drab mainline scenery.
  火车穿过干线两侧风景单调乏味的地区，缓缓地向南驶去。
• She pumped the stuff right into the mainline.
  她将麻醉剂直接注入手臂的主静脉。
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