Roadsigns
道路标志信号
🗣️ 情景例句
Challenge, the feeling of accomplishment, and knowing that you have made a contribution.
挑战，成就感和知道自己做出了贡献。
He has a dog.
他有一条狗。
I was walking home when I met Dave.
我碰到大卫时，我正往家走。