It's time to say goodbye. I hope I can you in the near future. (收到……来信)
We should be f to each other because we are brothers and sisters.
Throwing the litter h and there is a bad habit.
One t can′t make a forest, so we need teamwork.
Most Chinese think the color r is the symbol of good luck.
To live a low﹣carbon(低碳) life, we should t off the lights when we leave the room.