One book noted that the master carpenter Lu Ban also made some which were flown high to spy on the situation of the enemy.

一书中指出，木匠鲁班还提出了飞高去侦察敌军的情况。

youdao

One book noted that the master carpenter Lu Ban also made some which were flown high to spy on the situation of the enemy.

一书中指出，木匠鲁班还提出了飞高去侦察敌军的情况。

youdao