catch up with 赶上，追上；逮捕；处罚； 例句 After missing a term through illness he had to work hard to catch up with the others. 他因病休学一学...
work hard 努力学习；辛勤工作； 例句 I have to work hard today. 今天我得努力工作。 You need to work hard to keep ahead. 你要努力才能保持领先优势...
key university 重点大学。 例句 Luckily, he a key university last year. 幸运的是，去年他被一所名牌大学录取了。 Now I am a freshman of a key univer...
work hard指的是工作努力，在句子中常作谓语，后面可以加介词或名词等。 例句 The mechanics work hard to keep the helicopters airworthy. 机修工们为了...
