1. retire vi.退休; 撤退; 后退
例句:He will retire from his job next year and take things easy.
他明年就要退休过轻松的生活了。
2. decision n.决定; 决议; 果断
例句:Everybody present welcomed the decision.
出席的人都欢迎那个决议。
3. switch vt.转换; 转变,改变
例句:This is a good time to switch to the classical notation.
此刻是换用经典符号的好时候。
4. earn vt.赢得; 获得; 赚得
例句:He worked as a casual laborer and did not earn much.
他当临时工,没有赚多少钱。