dregs

n.渣, 沈澱物  [The sediment in a liquid]

n.【喻】渣滓

  ex.These bad guys are the dregs of the society.

 ex. the dregs of humanity.

聯想：跟drag v.拉,拖 的字型很像，可想成被拉到底下的沉澱物

c.f 

dross

n.浮渣 [ waste matter; refuse.]

(浮在熔化金屬上的不純的物質)

drench

v.使濕透 [ to wet thoroughly]

  ex. It was raining and I was drenched when I got home.

v.完全的浸於[to cover or fill completely; bathe]

  ex. trees drenched with sunlight.

簡單的說一下：drink 與drench是發展於同一個辭源的

drenched:wet
濕透的是十分濕的

trench  n.戰壕

drench     

摔到trench中，整個身體都drench了

drenched

adj.濕透的

adj.充滿的

drill

n.鑽機

v.鑽孔

  ex.The farmers drilled wells for water.
 農民打井取水。

drivel

n/v.流口水(or流鼻涕) [let saliva flow from the mouth]

n/v.胡說 [ to talk childishly or idiotically.]

補充：最原頭的意思是""to dribble or run at the nose""

聯想：drive + l(鼻水)

reveiw

drawl  v.拖長聲調說話

drizzle & drizzly

drizzle

v.下毛毛雨 [to rain gently and steadily in fine drops]

n.毛毛雨

補充：最原始的意思"a falling of dew"，落下露水

drizzle <> deluge  n.洪水；豪雨

drizzly

drizzle-y

adj.下毛毛雨的

droll

adj.滑稽的;離奇好笑的 [ amusing in an odd way]

  ex. droll:laugh 滑稽的令人發笑

  droll

  roll

  the droll clown roll down the stairways.

drone

v.嗡嗡響

n.雄蜂

補充：美國空軍對飛機編號的規則 D for drone 無人遙控機

drone

prone adj.有...傾向的

a drone is prone to drone all the day.

drone:monotonous
嗡嗡是單調的

droop

n/v.低垂 [To bend or hang downward]

 ex. His mouth drooped sadly.

 ex.The crops were drooping for want of water. ps.這裡的want當缺乏

from drop v.落下