1. a grouping of a number of similar things;

   "a bunch of trees"
   "a cluster of admirers"
   

2. a compact mass;

   "a ball of mud caught him on the shoulder"
   

3. a heavy dull sound (as made by impact of heavy objects)

1. make or move along with a sound as of a horse's hooves striking the ground

2. come together as in a cluster or flock;

   "The poets constellate in this town every summer"
   

3. walk clumsily

4. gather or cause to gather into a cluster;

   "She bunched her fingers into a fist"
   

1.(树木等的)丛，簇，群
Aclump of things such as trees or plants is a small group of them growing together.

e.g. ...aclump of trees bordering a side road.
旁路边的树丛
e.g. ...a sweetly scented perennial that grows in clumps.
一簇簇芳香宜人的多年生植物

2.(电线、头发等的)团，堆
Aclump of things such as wires or hair is a group of them collected together in one place.

e.g. I was combing my hair and it was just falling out in clumps.
我梳头的时候，头发一团一团地往下掉。

3.拖着沉重的步子走
If someoneclumps somewhere, they walk there with heavy, clumsy steps.

e.g. They went clumping up the stairs...
他们拖着沉重的脚步走上楼。
e.g. Men in big construction boots were clumping in and out with plans in their hands.
一群男人穿着大建筑靴，手中拿着图纸，噔噔噔地走进走出。

4.聚集成群;凝集成块
If thingsclump together, they gather together and form small groups or lumps.

e.g. Brown rice takes longer to cook but it doesn'tclump together as easily as white rice.
糙米不容易熟，但不会像精米那样容易粘在一起。

1. clump的近义词

1. 块：151 纤维团块(clump)因纤维开松分散不良造成纤网上出现的纤维结点、团块. 152 纤维分布(Fiber distributeon)是指纤网中纤维排列的均匀状况和平行杂乱的取向性质. 153 纤网加固(Bonding)利用纤维自身粘着性、溶液态粘合剂、热熔胶或机械纠缠等方法使纤维复合加固成纤网的过程.

2. 夹紧：closed-die forging 合模锻造 |clump 夹紧 | clutch 离合器

3. 脚踏楼板声 登登：23、油在锅里 滋滋 sizzle | 24、鞭炮爆炸声 噼啪 pop | 25、脚踏楼板声 登登clump

4. clump

4. 丛块：lump 丛,块 |clump 丛块 | junk 废旧物