解析:
給妳大體分析壹下：
都有“爪子”的意思。
其中只有paw和clutch可以用來表示人的手，paw表示粗笨的那種,clutch多表示五指分開正要抓東西那種狀態的手（talon有時也用來表示人手，但通常也是隱喻的手法，形容那種幹瘦的，有些恐怖的比如巫婆的手）。
*claw通常指四足或兩足動物的腳爪，有尖刺的那種。如狗貓爪，鳥爪等。
*paw指人手或四足動物的腳爪。如狗貓爪，馬蹄。
*talon專指猛禽，如鷹的爪子。
*clutch ：做抓取動作的手、螯、爪.
這樣分析能看明白麽？下面是字典釋意，妳再對比看壹下。
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claw
[klC:]
n.
爪, 腳爪
v.
抓
claw
claw
AHD:[kl?]
D.J.[kl%8]
K.K.[kl%]
n.（名詞）
A sharp, curved nail on the toe of a mammal, reptile, or bird.
爪：哺乳動物、爬行動物或鳥腳趾上的尖銳、彎曲的指甲
A chela or similar pincerlike structure on the end of a limb of a crustacean or other arthropod.
鉗，螯：甲殼類動物或其他節肢動物肢端的螯或相似的鉗狀構造
A limb terminating in such a structure.
末端有這種構造的肢體
Something, such as the cleft end of a hammerhead, that resembles a claw.
爪形器具：類似爪的東西，如錘頭的“V”狀末端
Botany The narrowed, stalklike basal part of certain petals or sepals.
植物學 瓣爪：某些花瓣或萼片狹長、柄狀的基部
v.tr.intr.（及物動詞和不及物動詞）
clawed， claw.ing， claws
To scratch, dig, tear, or pull with or as if with claws.
抓、挖、撕：用或類似用爪去抓、挖、撕或拉
paw
[pC:]
n.
手掌, 手爪
v.
以蹄扒地, 抓, 笨拙地使用, 費力地前進, (人)用手笨拙地摸
abbr.
[軍] Pla *** a-Arc Welding, 等離子弧焊
The nailed or clawed foot of an animal, especially of a quadruped.
腳爪，腳掌：帶指甲或爪的動物的足，尤指四足動物的爪
Informal A human hand, especially a large, clumsy one:
非正式用語 手：人類的手，尤指大而粗笨的手：
“Lennie dabbled his big paw in the water”(John Steinbeck)
“賴尼把他粗笨的手浸到水裏”(約翰·斯坦貝克)
v.（動詞）
pawed， paw.ing， paws
v.tr.（及物動詞）
To strike with the paw or paws.
抓：用爪打擊，抓
To strike or scrape with a beating motion:
堆，刨：用蹄刮或擊：
The bull pawed the ground before charging.
那頭牛用蹄刨著地準備出擊
To handle clumsily, rudely, or with too much familiarity.See Synonyms at touch
粗魯地摸弄：用手粗笨地，粗暴地觸摸參見 touch
v.intr.（不及物動詞）
To scrape the ground with the forefeet:
用前蹄抓地：
The horse pawed restlessly.
那匹馬用前蹄不停地刨著地
To handle someone or something clumsily, rudely, or with too much familiarity:
笨拙地摸，毛手毛腳：用笨拙的、粗暴的、不禮貌的方式對待某人或某物：
Don't paw at everything you see.
別亂碰東西
The claw of a bird of prey.
爪：猛禽的爪子
The similar claw of a predatory animal.
手, 爪：壹種食肉動物類似的爪子
Something similar to or suggestive of an animal's claw.
似爪子的東西：類似壹只動物的爪子或讓人想起壹只動物的爪子的某件事物
The part of a lock that the key presses in order to shoot the bolt.
鎖中被鑰匙按壓以彈起插銷的部分
Games The part of the deck of cards in certain card games left on the table after the deal.
遊戲 發剩的牌：某些紙牌遊戲中在發完牌之後剩在牌桌上的壹疊牌
Architecture An ogee molding.
建築學 爪飾：S形的裝飾線條
clutch
[klQtF]
v.
抓住, 攫住
n.
離合器
To grasp and hold tightly.
抓緊，緊握：緊緊抓住
To seize; snatch.
抓住；抓取
v.intr.（不及物動詞）
To attempt to grasp or seize:
試圖抓住：
clutch at a life raft.
試圖抓住救生筏
To engage or disengage a motor vehicle's clutch.
踩離合器：踩上或未踩上機動車的離合器
n.（名詞）
A hand, claw, talon, or paw in the act of grasping.
手，爪：做抓取動作的手、螯、爪
A tight grasp.
緊抓
Often clutches Control or power:
常作 clutches 控制或力量：
caught in the clutches of sin.
為惡勢力所控制
A device for gripping and holding.
抓舉設備
Any of various devices for engaging and disengaging o working parts of a shaft or of a shaft and a driving mechani *** .
離合器：壹種使軸的兩個職能部分或軸與機械驅動裝置處於相咬合或相分離狀態的設備
The apparatus, such as a lever or pedal, that activates one of these devices.
離合器桿或踏板：壹種起動上述設備的部件，如杠桿或踏板
A tense, critical situation:
緊要關頭：
came through in the clutch.
通過了緊要關頭
A clutch bag.
女用無帶皮包
adj.Informal （形容詞）非正式用語
Being or occurring in a tense or critical situation:
緊要關頭的：緊要關頭的或發生在緊要關頭的：
won the championship by sinking a clutch putt.
緊要關頭的壹擊贏得了冠軍
Tending to be successful in tense or critical situations:
在緊要關頭傾向於獲勝的：
The coach relied on her clutch pitcher.
教練寄希望於她的在緊要關頭占優勢的投手
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