| 单词 | arduous |
| 释义 | arduous —arduously, adv. —arduousness, n. /ahr"jooh euhs/ or, esp. Brit., /ahr"dyooh-/, adj. 1. requiring great exertion; laborious; difficult: an arduous undertaking. 2. requiring or using much energy and vigor; strenuous: making an arduous effort. 3. hard to climb; steep: an arduous path up the hill. 4. hard to endure; full of hardships; severe: an arduous winter. [1530-40; < L arduus erect, steep, laborious; see -OUS] Syn. 1. hard, toilsome, onerous, wearisome, burdensome, exhausting. Ant. 1. easy. |
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