difficulty

Compared meaning: difficulty, something hard to do (noun).

比较义项：困难（名词）。

• trouble

  Trouble is the everyday, informal word for a difficulty; it is usually uncountable and often describes a small, casual hassle, not necessarily something intellectually hard.

  trouble 是更口语化、日常的说法，通常不可数，常用来指一件小的、随意的麻烦事，不一定是智力上的困难。

  I had a bit of trouble finding a parking spot downtown.

  我在市中心找停车位时遇到了点小麻烦。

• difficulty 本词

  Difficulty is more formal and can be countable, referring to a specific problem that is worth naming or listing, especially in writing or serious discussion.

  difficulty 更正式，可作可数名词，指值得单独说明或列举的具体问题，常见于书面语或较正式的讨论中。

  The report lists several difficulties the team faced during testing.

  该报告列出了团队在测试过程中遇到的几个困难。

Trouble and difficulty both mean a problem that is hard to deal with. Trouble is informal and broad, covering mental difficulty or general hassle. Difficulty is more formal, meaning a specific problem in understanding or finishing something. Trouble can also mean punishment, not compared here.

trouble 和 difficulty 在表示「困难」时意思相近，但 trouble 更口语化、涵盖范围更广，不仅限于智力上的困难，也可以指麻烦、费力的事情；difficulty 更正式，尤指理解或完成某件事时遇到的具体困难。这里不比较 trouble 表示「惹上麻烦、受到责罚」的意思（如原例句中「因迟到而受罚」的用法）。