descend, drop, fall, sink

動詞 descend:

1. move downward and lower, but not necessarily all the way
   同義詞：fall, go down, come down
2. come from; be connected by a relationship of blood, for example
   同義詞：derive, come
3. do something that one considers to be below one's dignity
   同義詞：condescend, deign
4. come as if by falling
   同義詞：fall, settle

1. My sister's family is descending on us this weekend.
   想不到我姐姐一家本周末要到我們這里來
2. I didn't expect him to descend to personal abuse.
   我沒料到他會墮落到對我進行人身攻擊的地步。
3. The sun descended behind the hills.
   太陽下山了。
4. Armed thieves descended on the helpless travelers.
   一群武裝盜賊襲擊了無依無靠的旅客。

de.scend

v.（動詞）
de.scend.ed,de.scend.ing,de.scends
v.intr.（不及物動詞）
To move from a higher to a lower place; come or go down.
下來：從較高的地方移到較低的地方；降下
To slope, extend, or incline downward:
向下傾斜，向下延伸：
例句：
.A rough path descended like a steep stair into the plain.(J.R.R. Tolkien)
.一條坎坷不平的小路象陡峭的樓梯一樣向下延伸入平原.(J.R.R.托爾金)

To come from an ancestor or ancestry:
遺傳下來，傳下：來自祖先：
例句：
She was descended from a pioneer family.
她來自一個早期的開拓者家庭

To come down from a source; derive:
來自；來源于：從某一起源傳下來；起源于：
例句：
a tradition descending from colonial days.
從殖民地時代流傳下來的傳統(tǒng)

To pass by inheritance:
繼承：通過遺產(chǎn)傳遞：
例句：
The house has descended through four generations.
這座房子已經(jīng)傳了四代

To lower oneself; stoop:
自嘲；自謙：降低自己的身份；降格，卑屈：
例句：
.She, the conqueror, had descended to the level of the conquered.(James Bryce)
.她，一個征服者，屈尊成為被征服者.(詹姆斯·布賴斯)

To proceed or progress downward, as in rank, pitch, or scale:
按降序處理：按等級、程度或規(guī)模的降序進行或處理：
例句：
titles listed in descending order of importance; notes that descended to the lower register.
按顯赫程度由高到低排列的頭銜；由高音區(qū)降至低音域的音符

To arrive or attack in a sudden or an overwhelming manner:
蜂擁而至：突然或大量地到來或猛烈地侵襲：
例句：
summer tourists descending on the seashore village.
夏季旅游者涌入這座海濱小鎮(zhèn)

v.tr.（及物動詞）

To move from a higher to a lower part of; go down.
下降：從較高部分移到較低部分；下降
To get down from:
從…下來：
例句：
.People descended the minibus that shuttled guests to the nearby . . . beach.(Howard Kaplan)
.人們從將乘客載往鄰近海濱的小公共汽車上走下來.(霍華德·卡普蘭)

To extend or proceed downward along:
延伸下來：
例句：
a road that descended the mountain in sharp curves.
陡峭的下山路

來源：
Middle English descenden
中古英語 descenden
from Old French descendre
源自 古法語 descendre
from Latin dôscendere
源自 拉丁語 dôscendere
dô- [de-]
dô- [前綴，表.否定或相反.]
scandere [to climb] * see skand-
scandere [爬] *參見 skand-

【引伸】
descend.ible 或
descend.able
adj.（形容詞）