動詞 busy:

1. keep busy with
   同義詞：occupy

形容詞 busy:

1. actively or fully engaged or occupied
2. overcrowded or cluttered with detail
   同義詞：fussy
3. intrusive in a meddling or offensive manner
   同義詞：interfering, meddlesome, meddling, officious, busybodied
4. crowded with or characterized by much activity
5. (of facilities such as telephones or lavatories) unavailable for use by anyone else or indicating unavailability; (`engaged' is a British term for a busy telephone line)
   同義詞：engaged, in use

1. The line is busy.
   占線。
2. He is busy with some important work.
   他正忙于處理一些重要的事情。
3. To forget his trouble, he busied himself in his garden .
   為了把煩惱忘卻，他讓自己忙于花園的工作。
4. I'm sorry, sir, the telephone line is busy.
   對不起，先生，電話占線。

bus.y

adj.（形容詞）
bus.i.er,bus.i.est
Engaged in activity, as work; occupied.
繁忙的：忙于活動如工作的；沒空的
Sustaining much activity:
忙碌的：維持很多活動的：
例句：
a busy morning; a busy street.
忙碌的早晨；繁忙的街道

Meddlesome; prying.
愛管閑事的；到處窺探的
Being in use, as a telephone line.
占線的：正在使用的，比如電話線
Cluttered with detail to the point of being distracting:
繁雜的，雜亂的：瑣碎凌亂達到分散的程度：
例句：
a busy design.
繁雜的設計

v.tr.（及物動詞）
bus.ied,bus.y.ing,bus.ies
To make busy; occupy:
使忙于：使處于忙碌狀態(tài)；占用：
例句：
busied myself preparing my tax return.
忙于準備申報所得稅

來源：
Middle English bisi, busi
中古英語 bisi, busi
from Old English bisig
源自 古英語 bisig

【引伸】
bus.ily
adv.（副詞）
bus.yness
n.（名詞）
<參考詞匯><同義詞>busy,industrious,diligent,assiduous,sedulousAll these adjectives suggest active or sustained effort to accomplish something.
所有這些形容詞都表示積極努力去完成某事。
Busy, the most general, often refers simply and nonspecifically to engagement in activity:
Busy 是最普遍的，通常指簡單地和無特指意義的從事活動：
例句：
Don`t bother me-I`m busy. The word sometimes indicates constant and customary work or activity:
別打擾我，我正忙著呢。 這個詞有時也表示經(jīng)常性的和習慣性的工作或活動：

例句：
a busy lawyer;
忙碌的律師；

例句：
a busy day.
繁忙的一天。

Industrious implies steady application that is often habitual or the result of a natural inclination:
Industrious 表示經(jīng)常是習慣的或帶有自然傾向結(jié)果的固定用法：
例句：
The raspberries were harvested by industrious workers.
辛勤的勞動者收獲了山莓。

Diligent suggests constant painstaking effort,often toward the achievement of a specific goal:
Diligent 表示時常辛勤勞作的意思，經(jīng)常指為達到一個特定的目標：
例句：
A diligent detective investigates all clues.
勤奮的偵探會調(diào)查所有的線索。

Assiduous emphasizes sustained application:
Assiduous 強調(diào)持續(xù)的勤奮：
例句：
She is assiduous in her efforts to learn French.
她不懈地努力學習法語。

Sedulous adds toassiduous the sense of persistent, thoroughgoing endeavor:
Sedulous 增加了assiduous 的保持堅決、徹底努力的意思：
例句：
.the sedulous pursuit of legal and moral principles. (Ernest van den Haag);
.對法律和道德規(guī)范不懈的追求. （歐內(nèi)斯特·凡丹哈）；

例句：
.the innovative specialty store and oasis of elegant gadgets to the sedulous and casual collector alike. (Time).
.新穎的特產(chǎn)商店和精制小玩意的存放處對勤勉且隨便的收藏者來說是一樣. （時報）