用手臂引路的行为并不是太好，也算不上是能带你穿越人群的礼貌做法；但通过为你带路，他使得自己对你的去向了如指掌。

The arm guide isn't just good manners and a polite way of guiding you through a crowd; he's making sure he knows exactly where you're going by taking you there.

youdao

用手臂引路的行为并不是太好，也算不上是能带你穿越人群的礼貌做法；但通过为你带路，他使得自己对你的去向了如指掌。

The arm guide isn't just good manners and a polite way of guiding you through a crowd; he's making sure he knows exactly where you're going by taking you there.

youdao