rough sledding

同根派生

英汉例句

• Many of these proposals could encounter rough sledding.
  这些提议中有很多会碰到不利情况。
• Jane had rough sledding in her math course because she was poorly prepared.
  简的数学课学得很吃力，因为她的基础很差。
• Investigators have discovered many drugs that cure artificially induced cancers in rodents, but when the substances move into human trials, they usually have rough sledding.
  研究人员已经发现到，许多药物可以治愈齧齿动物身上人为诱发的癌症，可是一旦把这些药物拿来进行人体试验，之后的路就变得非常的崎岖。
• The man attached a strong rope to his sled.
  那人将一条结实的绳子系在他的雪撬上。
• This rough track will soon be a metalled road.
  这条坑坑洼洼的路不久就要铺上碎石了。