| 单词 | thankless |
| 释义 | thankless thankless adj: (unrewarding) SC 吃力不讨好的 chī lì bù tǎo hǎo de SC 徒劳的 chī lì bù tǎo hǎo de，tú láo de Telemarketing is a thankless job: it's difficult to make money, and everyone hates telemarketers. |
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