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| daunting challenge; no mean feat | |||
| stiff task; not an easy task (Chefs in the corporate world must be able to bring their meal masterpieces to the masses, it's not an easy task when feeding groups that may sit down in the hundreds. ART Vancouver); no easy task (dimock) | |||
| heavy lifting (ART Vancouver) | |||
| нелёгкая задача: 7 短语, 2 学科 |
| 一般 | 5 |
| 惯用语 | 2 |