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worth 後面加 to 定 ing？
✗ 你會咁寫
This problem is worth to discuss, and sports play a crucial role to maintain students’ mental health.
✓ 應該係
This problem is worth discussing, and sports play a crucial role in maintaining students’ mental health.
「worth」後面直接加 V-ing，冇「to」。「play a role」後面係固定配「in + V-ing」，所以動詞要改成 maintaining。
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點解你會咁寫
中文「值得討論」、「扮演重要角色去維持」兩個都用「去 + 動詞」，所以譯過英文好自然咁寫成 to。呢啲搭配冇得推理，記硬佢：worth + V-ing、play a role in + V-ing、valuable in + V-ing、look forward to + V-ing。
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再睇多兩個例子
✗ This book is worth to read twice.
✓ This book is worth reading twice.
✗ I look forward to hear from you.
✓ I look forward to hearing from you.
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