Upgradation
升级；改善；提高
🗣️ 情景例句
You work too hard, Susan.
太拼命工作了， Susan。
Every man is best know to himself.
自己最了解自己。
She left home when she was eighteen and has lived in Los Angeles for the past fifteen years.
18岁时，她离开了家。过去的15年里她一直住在洛杉矶。