Warning: file_put_contents(): Only 0 of 6423 bytes written, possibly out of free disk space in /home/www/wwwroot/zidian/oclz.com/index.php on line 55 helicopters英英字典_helicopters剑桥英语解释_helicopters柯林斯英文解释_菜篮子兴趣思朗文词典
1. N-COUNT A helicopter is an aircraft with long blades on top that go around very fast. It is able to stay still in the air and to move straight upward or downward. 直升机