约翰自从戒烟以来体重已经增加了 5公斤.
John five kilos since he gave up smoking.
Elephants have good memories. They never (忘记) the places with food and water.
Today we begin to learn the (第八) lesson. It is about delicious food.
There is something wrong with his teeth. He should go to the (牙医).
Everyone may have problems. We should (明智地) solve them.
The sayings (提醒) us to try our best and never give up.