辛苦用英語表達是difficulty。
壹、發音英：[/?d?f?k?lti/]；美：[/?d?f?k?lti/]
二、中文翻譯n. 困難，難度，麻煩，辛苦（在某些語境下）
三、形式復數形式：difficulties
四、短語搭配1. have difficulty (in): 有困難/辛苦
2. difficulty level: 難度級別
3. encounter difficulty: 遭遇困難/辛苦
4. overcome difficulty: 克服困難/辛苦
5. increase/decrease in difficulty: 增加/減少困難
6. cause difficulty: 引起困難/辛苦
五、雙語例句1. He has difficulty in learning English.
他學英語很辛苦。
2. The difficulty level of the game can be adjusted.
這個遊戲的難度級別可以調整。
3. They encountered difficulty in the early stages of the project.
他們在項目的早期階段遇到了很大的辛苦。
4. Despite many difficulties, they managed to finish the project on time.
盡管過程很辛苦，他們還是設法按時完成了項目。
5. The changes in the project increased the difficulty.
項目的變動增加了困難/辛苦。
6. Lack of resources is causing difficulty in completing the project.
資源的缺乏讓完成項目變得更加辛苦。
六、用法1. "Difficulty" 作為名詞，通常表示壹種挑戰或困擾的情況，也可在某些語境下引申為"辛苦"。例如：He is having difficulty finding a job. (他找工作很辛苦。)
2. "Difficulty" 通常可以與壹些動詞搭配，如 "have", "encounter", "overcome"等，表示有困難、遇到困難、克服困難等。例如：They are having difficulty understanding the concept. (他們理解這個概念很辛苦。)
3. "Difficulty" 也可以與 "increase" 或 "decrease" 搭配，表示困難的增加或減少。例如：The difficulty of the task increased when new rules were introduced. (當引入新的規則時，任務的困難/辛苦增加了。)
4. 當我們說某事 "causes difficulty"，這表示這件事讓壹個任務或目標更難完成，也可能意味著這使得完成任務更加辛苦。例如：Lack of funding is causing difficulty in the project. (資金短缺讓項目的完成更加辛苦。)
5. "Difficulty" 的復數形式是 "difficulties"。例如：He is facing many difficulties in his personal life. (他在個人生活中面臨許多困難/辛苦。)
七、同義詞n. 努力；成就
achievement，success，pain，struggle，trial