27：机票：很简单，选择电子票而不是纸质票，减少浪费的纸张。
Air travel ticketing: Simple, choose an electronic ticket rather than a paper ticket and thereby reduce the need for paper to be wasted.
27：机票：很简单，选择电子票而不是纸质票，减少浪费的纸张。
Air travel ticketing: Simple, choose an electronic ticket rather than a paper ticket and thereby reduce the need for paper to be wasted.
应用推荐