Backscratching
n. 为共同利益而互相利用
🗣️ 情景例句
Emergency Assistance, may I help you?
紧急事故救援中心，有什么需要帮助的吗？
Thank you but this is something I have to figure out myself.
但有些事情我必须自己去考虑。
'May I have two tickets please?' I asked.
“我可以买两张票吗？”