Its a super tough problem.

这是一个超级难的问题。

youdao

Unreinforced, Super Tough, black polybutylene terephthalate resin for injection molding.

无加强，超级强韧，黑色聚对苯二甲酸丁二酯树脂注塑。

youdao

Super Tough, high performance polyamide 66 resin. It offers outstanding molding performance in injection molding applications.

超级强韧，高性能聚酰胺66树脂。它提供了出色的成型注塑成型应用的性能。

youdao

His opponents say he has an exaggerated fear of hardline opponents and adopts super-tough postures to combat them.

ECONOMIST: Northern Ireland

Super-Tough Display: Scratch- and impact-resistant glass stays easy-to-read, workout after workout.

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All this is ironic when you consider that the Super League introduced tough licensing requirements a few years ago.

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