left-hand基本解释
形容词左手的; 左边的，左侧的
left-hand词典解释
1. 左手边的；左边的；左侧的
If something is on the left-hand side of something, it is positioned on the left of it.
e.g. They drive on the left-hand side of the road...
他们靠公路左边行驶。
e.g. The keys are in the back left-hand corner of the drawer.
钥匙放在抽屉里面左边一角。
