1. refine/rɪˈfaɪn/
(1) vt. 精炼;提纯;去除杂质
the process of refining oil/sugar 炼油的╱炼糖的工序
(2) 改进;改善
2. sheer /ʃɪə(r)/
(1) a. 陡峭的
sheer cliffs/slopes 悬崖峭壁;陡坡
(2) a.完全的;纯粹的;十足的
he concert was sheer delight.
这场音乐会是一次十足的享受。
3. sparsely /ˈspɑːsli/
adv. 稀疏地;贫乏地 (≈ thinly)
sparsely = sparse (a. 稀少的;稀疏的)+ ly(副词后缀)
4. thinly /ˈθɪnli/
adv. 薄;稀疏地;细;瘦(≈ sparsely)
例：a thinly populated area 人烟稀少的地区
5. randomly /ˈrændəmli/
adv. 随便地，任意地;无目的地
randomly = random(a.随机的，随意的) + ly(副词后缀)
例：The winning numbers are randomly selected by computer.
中奖号码是由电脑随机选取的。
6. densely /ˈdensli/
adv. 浓密地;密集地
densely = dense(adj. 稠密的;浓密的) + ly(副词后缀)
7. evenly /ˈiːvnli/
adv. 平均地，均等地;
evenly= even(a.相等的;均衡的) + ly(副词后缀)
例：evenly distributed/divided 平均分布/分配
8. diminish /dɪˈmɪnɪʃ/
v. 减少;(使)减弱，缩减;降低
例：diminish the supply of silver 减少银矿供应
9. decline /dɪˈklaɪn/
(1) v. 减少;下降;衰弱;衰退
Support for the party continues to decline.
对该党的支持继续下降。
(2) v. 谢绝;婉言拒绝(≈ refuse)
to decline an offer/invitation
谢绝对方的主动帮助╱邀请
10. decrease /dɪˈkriːs/
v.(使大小、数量等)减少，减小，降低
The price of meat has decreased by 15%.
肉类价格降低了15%。
