1.suck用作及物动词时作“吸,吃,吸汁”解。用嘴来吸食液体或从某物中吸取液体,引申可表示“自〔从〕…吸取知识、信息”等。suck还可作“舐”解,指把某物含在口中以舌舐、转动、挤压。
2.suck主要用作及物动词,也可用作不及物动词。用作及物动词时,接名词或代词作宾语,也可接由形容词充当补足语的复合宾语。

suck at(v.+prep.)
吸,抽 draw into
▲suck at sth
The old man is sucking at his pipe.老人在抽烟斗。
He sucked at one cigarette after the other.他一支又一支地吸香烟。

suck away at(v.+adv.+prep.)
吸,啜 perform the action of sucking
▲suck away at sth
The baby was sucking away at the empty feeding-bottle.那个孩子正在吮吸着空奶瓶。

suck down(v.+adv.)
吸进,卷入 pull into
▲suck sth⇔down
The whirlpool sucked down the canoe.漩涡把独木舟卷了进去。
The whirlpool sucked down everything floating on the water.漩涡把水面上漂的东西都吸进去了。

suck from(v.+prep.)
从…吸取 draw (sth) from
▲suck from sth
Plant sucks from the soil.植物从土壤吸取养分。
▲suck sth from sth
Bees suck honey from flowers.蜜蜂从花中吸吮蜜汁。
He sucked the juice from the orange.他吮吸橘子里的汁。

suck in(v.+adv.)
▲suck sb/sth⇔in
1.吸入… draw in with the mouth
It's good to suck in such clean fresh air for a change.换换环境,吸点清新空气,真是好极了。
2.收缩 make hollow as with the breath or muscles
He sucked in his cheeks whenever he was thinking hard.每逢他大动脑筋的时候他就把腮帮子嘬进去。
He had to suck in his stomach to pass between the chairs.在椅子中间穿过时他得把肚子缩进去。
3.欺骗 deceive (sb), as by attraction
◇ 用于be ～ed结构
You were properly sucked in that time, weren't you?那次你纯粹是上了当,是吧?

suck into(v.+prep.)
吞噬,拉进,卷入 engulf; pull in
▲suck sb/sth into sth
◇ 用于be ～ed结构
The little boy was sucked into the marsh.那个男孩陷进了沼泽地。
The canoe was sucked into the whirlpool.那独木舟被卷进了漩涡。

suck through(v.+prep.)
用…吸液体,啜 draw (liquid) into the mouth by the use of
▲suck sth through sth
He was sucking his drink through a straw.他用一根吸管吸着饮料。
◇ 用于be ～ed结构
Lemonade can be sucked through a straw.可以用一根吸管吸柠檬汁。

suck up(v.+adv.)
▲suck sth⇔up
1.吸起 draw (liquid) into the mouth by the use of the lip muscles
She sucked up the lemonade through a straw.她用吸管吸柠檬汁。
The firemen's pump is intended to suck up the pools of water from the burned-out building.消防队的抽水机用来把烧毁的房子里的积水抽掉。
2.吸收 absorb
These plants suck up moisture from the soil.这些植物吸收土壤中的水分。
The cleverest students can suck up as much information as you can give them.最聪明的学生能吸收你所教授的全部知识。

suck up to(v.+adv.+prep.)
奉承 try to please by flattery, offers of service
▲suck up to sb
She is always sucking up to her teacher.她老是巴结老师。
◇ 用于be ～ed结构
Don't try to impress the new boss, he hates being sucked up to.别想着去讨好新老板,他最讨厌别人奉承他。

用作不及物动词
▲S+～(+A)
The pump sucked.泵尽是抽着空气。
He sucked hard for air to keep breathing.他拼命吸气以维持呼吸。
用作及物动词
▲S+～+n./pron.
We sucked the oranges.我们喝橘子汁。
The baby was sucking its mother's breast.婴儿正在吸食母乳。
The boy had a sweet in his mouth and was sucking it hard.那男孩嘴里含了一块糖,使劲咂着。
The child was sucking its thumb.这个小孩正在吮吸拇指。
She was sucking a piece of candy.她在舐糖果。
They sucked knowledge out of their experience.他们从经验中吸取有用的知识。
用作宾补动词
▲S+～+n./pron.+adj.
The boy sucked the bottle dry.孩子把瓶子吸干了。

suck, absorb
这组词都有“吸收”的意思。其区别是:
1.absorb主要是“吸收”水、光或热等; suck则是“吸”或“饮”汁、水或饮料,还可表示“吸”烟。
2.suck还可表示被卷入某项事物之中; absorb无此义。