buck
noun [ C ] uk/bʌk/ us/bʌk/
(MONEY)
US Australian English, informal plural bucks（美）元
a dollar
Can I borrow a couple of bucks? 我能借几美元吗？
He charged me 20 bucks for a new hubcap. 一个新的毂盖他要了我20美元。
Indian English, informal plural bucks（印度）卢比
a rupee
South African English, informal plural bucks（南非）兰特
a rand
informal plural bucks（用于某些表达方式中）许多钱
used in a number of expressions about money, usually expressions referring to a lot of money
He earns megabucks (= a lot of money) working for an American bank. 他在一家美国银行工作，赚钱很多。
So what's the best way to make a fast buck (= earn money easily and quickly)? 那么，赚快钱的最好办法是什么？
(ANIMAL)
plural buck or bucks雄性动物;雄鹿;公兔;（南美）羚羊
the male of some animals such as deer and rabbits, or (in South Africa) a male or female antelope
Compare: doe
Idioms
pass the buckidiom 推卸责任
to blame someone or make them responsible for a problem that you should deal with
She's always trying to pass the buck and I'm sick of it! 她老是想推诿责任，我非常讨厌这一点。
the buck stops hereidiom saying 责任到此，不能再推诿；我负责
said by someone who is responsible for making decisions and who will be blamed if things go wrong
buck
verb [ I ] uk/bʌk/ us/bʌk/
（马）弓背跳跃，尥起后蹄跳跃
(of a horse) to jump into the air and kick out with the back legs
Idioms
buck the systemidiom 反抗现存体制
to refuse to follow the rules of an organization
Alex is always looking for ways to buck the system. 亚历克斯总是想方设法抗拒现行制度。
buck the trendidiom （尤指经济上）逆潮流，逆势
to be obviously different from the way that a situation is developing generally, especially in connection with financial matters
This company is the only one to have bucked the trend of a declining industry. 这家公司是在行业日益不景气的情况下唯一一家蒸蒸日上的企业。
Phrasal verb
buck (someone/something) up （使）高兴起来;（使）振作起来
to become happier or more positive or to make someone happier or more positive
Oh, buck up for heaven's sake, Anthony! I'm sick of looking at your miserable face. 噢，安东尼，看在老天的份上振作起来！我不愿看到你那副愁眉苦脸的样子。
She was told that if she didn't buck her ideas up (= start working in a more positive way), she'd be out of a job. 她被告知，如果工作再不积极点儿就会丢了饭碗。
A week at the beach will buck her up. 在海边住一星期会使她精神焕发的。