prep.

1. 在……裡，在……上
   The two brothers study in the same class.

   兩兄弟在同一個班裡上課。

   The telephone is in the little study on the ground floor.

   電話在一樓的小書房內。

2. 在……之內；在……方面
   He is lacking in courage.

   他缺乏勇氣。

3. 從事於；參加著
   She is in business.

   她做生意。

4. 穿著，戴著
   He is dressed in black.

   他穿黑衣服。

5. 朝，向
   She hurried away in the opposite direction.

   她朝相反的方向匆匆離去。

6. （表示手段，方法，材料）用，以
   They paid in cash.

   他們用現金支付。

7. 在……期間；在……以後
   He'll come back in a week.

   他將於一週之後回來。

   I haven't met her in a long time.

   我好長時間沒有遇見她了。

8. 處在……中
   The room was in disorder.

   房間裡亂七八糟。

9. （表示數量，程度，比例）按，以；在……中
   One child in twenty has this disease.

   二十個小孩中有一個患有這種疾病。

10. 在……身上，在……上
    In him I see a future leader.

    我在他身上看到了一個未來的領袖人物。

11. （表示過程）在……當兒；在……過程中
    The work is in progress.

    這工作正在進行中。

12. （表示動作的方向和結果）進入到……中；成，為
    He pushed a button and set the machine in motion.

    他按下按鈕開動了機器。

ad.

1. 進；在裡頭
   Please come in.

   請進。

2. 在屋裡；在家
   I called on him; but he wasn't in.

   我去拜訪他，但他不在家。

3. （車，船，季節等）已到達，已來臨
   Spring is in at last.

   春天終於來了。

4. （莊稼）已收進；已成熟
   The wheat crop is in.

   小麥收進來了。

5. （服裝等）時髦
   Miniskirts are in again.

   迷你裙又時髦起來了。

6. 當政；當選
   The Democratic Party is in.

   民主黨執政了。

7. 【板】輪到擊球，【網】（球）在界內
8. （加）入，（攙）入

a.

1. 在裡面的；朝裡面的[B]
   I found the letter in my tray.

   我在收文盤子裡發現了這封信。

2. 【口】時髦的，流行的；趕時髦的[B]
   These clothes are the "in" thing now in Los Angeles.

   這些衣服在洛杉磯正流行。

   the in crowd

   趕時髦的一群

   This is the in thing to wear this season.

   這是這一季最流行的穿著。

   She mixed with the in crowd.

   她與時髦階層交往。

3. 【口】限於小圈子的[B]
   It was an in joke.

   這是小圈子裡的一個玩笑。

4. （火等）燃燒著的；（燈）亮著的[F]

n.

1. 當朝派；執政者[P1]
2. 【美】【口】門路，關係[C]

prep.

1. expressing the situation of being enclosed or surrounded by something.
2. expressing motion that results in being within or surrounded by something.
3. expressing a period of time during which an event happens or a situation remains the case.
4. expressing the length of time before a future event is expected to happen.
5. expressing a state, condition, or quality.
6. expressing inclusion or involvement.
7. indicating someone's occupation or profession.
8. indicating the language or medium used.
9. expressing a value as a proportion of (a whole).

adv.

1. expressing movement that results in being enclosed or surrounded by something.
2. expressing the situation of being enclosed or surrounded by something.
   ▸present at one's home or office.
   ▸Cricket  batting.
3. expressing arrival.
4. (of the tide) rising or at its highest level.

adj.