1.hug的基本意思是“拥抱,抱住”,通常表示一种友好的态度,这种方式可以是爱人之间,也可以是友人之间的一种友好的表现,也可以表示为了庆祝某件事而拥抱。hug还有“紧靠…走”“抱有,持有”的意思。
2.hug在句中主要用作及物动词,后接名词或代词作宾语。

hug oneself
沾沾自喜 be very pleased with oneself
I'm hugging myself at the thought of seeing him again so soon.一想到这么快又能见到他,我喜不自胜。
He hugged himself on finding a job.他因找到一份工作而沾沾自喜。
He hugged himself over the easy way he had won.他为自己轻易取胜而暗自得意。
He hugged himself for his success in the examination.他考试成绩好就沾沾自喜起来。

hug the road
平稳行驶 drive smoothly
A heavy car with a low center of gravity will hug the road.重心低的载重汽车会在路面上平稳行驶。

用作及物动词
▲S+～+pron./n. 
She was so fond of babies that she must hug each one she met.她很喜欢小孩,她一定会拥抱她遇见的每一个小孩。
He hurries down the gangplank to hug his waiting wife.他匆匆忙忙走下跳板,张开双臂去拥抱他那等待着的妻子。
The child is hugging her doll.那个小孩紧抱着她的洋娃娃。
The boat hugged the coast.船紧靠着岸边而行。
The road hugs the river.那条路紧靠河边。
He smiled and hugged his thought.他笑了笑并坚持自己的观点。
He hugged the wrong belief.他坚持这一错误的信念。
We hug our half belief in ghosts.我们对鬼魂半信半疑。

hug, clasp, embrace
这组词都表示“拥抱”。其区别是:hug比较通俗,可表示任何形式的拥抱,可表示因为爱情而“拥抱”,也可表示因友情而“拥抱”; embrace则多指因爱情而“拥抱”; clasp则强调拥抱某一特定的部位,如腰、颈等。

He gave me a hug.他紧紧拥抱着我。
The two friends greeted each other with bear hugs.两个老朋友见面时互相热烈拥抱。

［同义词］ v. & n. embrace, squeeze