难的用英语怎么说？

难的

• hardy

例句

• He simply sailed through the difficult exam. 他轻而易举地通过了这次困难的考试。
• It would be difficult to find a man to take the place of the secretary. 找一个代替秘书的人会很难的。
• The study of physics takes in many difficult subjects. 物理的学习包括许多困难的方面。
• The shipwrecked sailors were picked up by a passing boat. 一艘过路的船只搭救了遭受船难的水手。
• presumable causes of the disaster. 灾难的可能原因
• The air crash caused an unprecedented number of deaths. 这次空难的死亡人数是空前的。
• to sidestep a difficult question 避开一个困难的问题
• Optimism made him alive through the hard days. 乐观主义使他在艰难的岁月里活了下来。
• We passed a stiff examination. 我们通过了一次艰难的考试。
• They took refuge in a cave yesterday. 他们昨天是在一个洞里避难的。