翻译 Life is full of ups and downs,nothing will last forever.
情景1 牙疼了三天不得不去看医生。
造句1 My toothache lasted for three days. I have to go to my dentist today.
情景2 儿子摔跤后每次都大哭，如果没人理他他会哭半天。
造句2 My son cries every time when he tumbles to the ground.The crying lasts quite a long time if no one check on him.
