sometimes from time to time at times 有时
ready prepared 有准备的
get ready for get prepared for 为做好准备
ready willing 乐意的
rarely hardly seldom 很少， 几乎不
usually normally 通常地
normal common usual average 通常的
suddenly abruptly 突然地
protect preserve 保护
slight a little 轻微的
harmful damaging -- bad 有害的
harm damage 损害
hurt injure 伤害
shine polish 擦亮
deadly killing fatal 致命的
affect influence impact 影响
impartial fair just 公正的
extract take out 拔出
repair fix 修理
physician doctor 医生
depend on rely on be dependent on 依靠
particularly especially 尤其， 特别
obvious evident clear distinct 明显的
safe secure 安全的
ensure make sure make certain 确保
pretty very rather fairly 相当地
distant remote 遥远的
important essential crucial 重要的
branch division 部门
company firm concern corporation enterprise 公司
behavior conduct 行为
steady stable 稳定的
spare time free time 空闲时间
accelerate speed up step up pick up 加速
decrease reduce cut down on 减少
deficient short 缺乏的
delighted joyful happyglad -- pleased 高兴的
accumulate gather collect 积聚， 积累
speed rate 速度