Bidirection
双向
🗣️ 情景例句
Hi, Dad.
你好， 爸爸。
Do you build sand castles when you go to the beach?
你去沙滩的时候，堆沙丘城堡了吗？
I was able to tell him that he had pulled out the wrong tooth.
我总算有可能告诉他，他拔错了牙。