Helimail
直升飞机(运送)邮件
🗣️ 情景例句
You're welcome.
不用谢
My sister is the oldest.
我的姐姐是最大。
Forest fires are often caused by broken glass or by cigarette ends which people carelessly throw away.
森林火灾时常由破碎的玻璃或人们随手扔掉的香烟头引起。