previous – former 以前的
maintain – hold – think 认为
cause – bring about – lead to – result in 导致
error – mistake 错误
component – ingredient – element 成分
solve – settle 解决(问题)
unbelievable – incredible 难以置信的
diligent – hardworking 勤劳的， 刻苦的
principal –chief -- leading--- main 主要的， 首要的
employ – hire 雇佣
fire – dismiss – send away解雇
assume – suppose 假定
on the verge of --- close to 接近于, 濒临于
gaze at – look at – stare at 凝视，注视
entitled – qualified 有资格的
employment – work – job 工作
encourage – inspire – push 鼓励， 激励
no longer – no more 不再
admit – acknowledge 承认
allow – permit 允许
state – declare – announce 宣布，声明
regret – sorry 遗憾的
remove – get off 脱下
start – begin 开始
observe -- stick to 遵守
