用法:
1 [I] send out air from the lungs violently and noisily, esp to clear one's throat or when one has a cold, etc 咳嗽:
She was coughing (away) all night. 她咳了一整夜. *
(fig 比喻) The engine coughed and spluttered into life, ie started noisily. 这发动机起动时喀喀作响.

用法:
2 [Tn, Tn.p] ~ sth (up) get sth out of the throat or lungs by coughing 咳出某物:
He'd been coughing up blood. 他那时一直在咳血.

用法:
3 (phr v) cough (sth) up (Brit infml) say or produce sth reluctantly 勉强说出某话; 不情愿地提供某物:
He owes us money, but he won't cough (it) up. 他欠我们钱, 却不愿还帐. *
Come on, cough up:
who did it? 好了, 说出来, 是谁干的? cough 2
n

用法:
1 [C] act or sound of coughing 咳嗽; 咳嗽声:
She gave a quiet cough to attract my attention. 她轻轻地咳了一声好引起我注意.

用法:
2 [sing] illness, infection, etc that causes a person to cough often 咳嗽:
have a bad cough 咳嗽得很厉害 *
[attrib 作定语] `cough medicine, mixture, etc, ie taken to relieve a cough 止咳的药、 合剂等.

• lay a finger on(lay one's finger on, put one's finger on)
• lay a hand on(lay hands on)
• lay a hand on(lay one's hand on)
• lay at sb's door(lie at sb's door)
• lay one's finger on(put one's finger on, lay one's hands on)
• lay wait for(lie in wait for)
• lay(lie)
• learn by experience(learn from experience)
• learned
• leave alone(leave sb alone, leave sth alone, let sb alone, let sth alone)
• leave(part)
• leisure(spare time)
• lend a hand(give a leg up)
• lest(in case)
• lest(so that)
• let alone(let well alone)
• let's(let us)
• let(granting that)
• let(let out)
• life(the life)
• lifelong(livelong)
• lift a hand(lift one's hand)
• lift up one's voice(raise one's voice)
• lighted(lit)
• like doing sth(like to do sth)