clearance

1. N-VAR Clearance is the removal of old buildings, trees, or other things that are not wanted from an area. 拆除; 清除

The U.N. pledged to help supervise the clearance of mines. 聯(lián)郃國承諾幫助監(jiān)督掃雷工作。

2. N-VAR If you get clearance to do or have something, you get official approval or permission to do or have it. 官方許可

Thai Airways said the plane had been given clearance to land. 泰國航空公司說該飛機已經被授予了著陸的官方許可。