勉力 is a formal, written verb meaning 'to exert oneself' or 'to strive with effort,' often implying overcoming difficulty or limitation. The character 勉 means 'to encourage' or 'to try hard,' while 力 means 'strength' or 'effort.' Together, they convey the idea of applying one’s limited strength intentionally—suggesting determination despite fatigue, lack of resources, or low confidence. It frequently appears in contexts of perseverance under pressure: academic challenges, physical hardship, or emotional strain.

This word carries a slightly literary or solemn tone and is common in essays, news reports, and formal speech—not everyday casual conversation. It often co-occurs with verbs like 做 (do), 完成 (complete), or 维持 (maintain), and may be modified by adverbs like 尽管 (although) or 虽然 (even though) to highlight the contrast between effort and difficulty. Unlike colloquial alternatives like 努力, 勉力 emphasizes the *strain* of the effort, not just the intention.