Adjectives of Difficulty and Ambiguity

难的, 困难的

Learning to play the piano at a professional level is hard and requires years of practice.

学习以专业水平弹钢琴很难，需要多年的练习。

困难的, 艰难的

Solving complex mathematical equations can be difficult without a strong understanding of mathematical principles.

如果没有对数学原理的深刻理解，解决复杂的数学方程可能会困难。

艰难, 困难

Climbing Mount Everest is tough due to its extreme altitude and unpredictable weather conditions.

攀登珠穆朗玛峰由于其极端海拔和不可预测的天气条件而艰难。

进步, 进展

The company's technological advance has been remarkable this year.

公司今年的技术进步非常显著。

中级

The coach focused on helping the intermediates improve their techniques.

棘手的, 复杂的

Driving in heavy traffic can be tricky, especially during rush hour.

在交通繁忙时驾驶可能会棘手，尤其是在高峰时段。

艰巨的, 费力的

The climb up the mountain was an arduous task for the hikers.

对于徒步旅行者来说，爬山是一项艰巨的任务。

费力的, strenuous

The strenuous hike drained their physical energy.

strenuous的徒步旅行耗尽了他们的体力。

要求, 索取

The workers decided to demand higher wages and better working conditions during the negotiations.

工人们决定在谈判期间要求更高的工资和更好的工作条件。

挑战, 邀请竞争

She challenges her colleagues to a friendly chess match every Friday.

她每周五都会挑战她的同事进行一场友好的象棋比赛。

有问题的, 困难的

The weather conditions were problematic for the hikers trying to reach the summit.

天气条件对试图到达山顶的徒步旅行者来说是有问题的。

不清楚, 不明確

It’s still unclear whether the event will be postponed due to the weather.

由于天气原因，活动是否会推迟仍不清楚。

模糊的, 不明确的

The instructions given were vague, leaving room for interpretation.

给出的指示模糊不清，留下了解释的空间。

模糊的, 不清晰的

Her memory of the event was indistinct, making it difficult to recall specific details.

她对事件的记忆模糊不清，因此很难回忆起具体的细节。

晦涩的, 神秘的

The obscure references in the text were difficult for most readers to understand.

文本中的晦涩引用对大多数读者来说很难理解。

模棱两可的, 不明确的

The movie's ending was ambiguous, leaving the audience with more questions than answers.

电影的结局模棱两可，给观众留下的问题多于答案。

含蓄的, 暗示的

His implicit approval was evident from the nod of his head.

他隐含的认可从他的点头中显而易见。

难以捉摸的, elusive的

The elusive fox darted through the underbrush, impossible to catch.

难以捉摸的狐狸迅速穿过灌木丛，不可能被抓住。

不连贯的, 混乱的

His speech became increasingly incoherent as he grew more nervous.

随着他越来越紧张，他的演讲变得越来越语无伦次。

神秘的, 费解的

The author's choice of ending for the novel was enigmatic and sparked much debate.

作者对小说结局的选择神秘莫测，引发了很多争论。

混淆, 误解

She confused her coworker's instructions with those of her manager, leading to a mix-up in the project requirements.

使困惑, 使复杂化

The intricate puzzle often perplexes even the most experienced solvers.

复杂的谜题常常困惑即使是最有经验的解谜者。

深奥的, 晦涩的

The professor's abstruse lecture on theoretical physics left many students bewildered, struggling to grasp the complex concepts.

教授关于理论物理学的深奥讲座让许多学生感到困惑，难以理解这些复杂的概念。

神秘的, 晦涩的

The cryptic message left on the desk contained clues to the whereabouts of the missing treasure.

留在桌子上的神秘信息包含了关于失踪宝藏下落的线索。

模糊的, 朦胧的

The concept of happiness is often nebulous, varying from person to person.

幸福的概念往往是模糊的，因人而异。

神秘的, 难以理解的

The disappearance of the ancient civilization remains mysterious, as archaeologists continue to uncover clues but struggle to piece together the full story.

古代文明的消失仍然神秘，因为考古学家继续发现线索，但难以拼凑出完整的故事。

模糊的, 不清晰的

His memory of the event was fuzzy, with only vague recollections remaining.

他对事件的记忆模糊，只剩下模糊的回忆。