longer(更长)
younger(更年轻)
poorer(更穷)
Teach(教)-teacher(教师)
work(工作)-worker(工作者)
drive(驾驶)-(driver驾驶员)
write(写)- writer(作家)
think(想)-thinker(思想家)
weld-welder(焊接工)
plan(计划)-planner(计划员)
sing(歌唱)-singer (歌唱家)
cash(支付现款)-cashier (收银员)
program(编程)-programmer (程序员)
manage(经营)- manager (经理)