记忆方法
将“labored”分解为“labor”和“-ed”。想象一个工人（labor）在工作时非常吃力、缓慢地操作，由此形成的劳动过程是“劳累”的，这样的场景可以帮助记忆“labored”表示费力、吃力的意思。
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中文词源
labored 不自然的，费力的
来自labor,劳动，辛劳，引申词义做作的，不自然的。词义演变比较factitious.
英语词源
- labored (adj.)
- also laboured, "learned," mid-15c., past participle adjective from labor (v.). Meaning "done with much labor" is from c. 1600.
权威例句
- 1. I was close enough to the elk to hear its labored breathing.
- 我离那头麋鹿非常近，能听见它吃力的呼吸声。
- 2. They have labored to complete the job.
- 他们努力完成这一工作。
- 3. They labored under the disadvantage of not having enough money.
- 他们苦于得不到足够的资金.
- 4. Among the planners, a labored joke was spreading about Captain Henry's girl - friend, " Elsie ".
- 在计划人员中间, 已精心制造出一个关于享利上校的女友 “ 艾尔西 ” 的笑话在传播.
- 5. He labored under the delusion that he could never make a mistake.
- 他受害于他从来不会出错的幻想.