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湧く， 涌く， わく
1. to well (up), to gush out (of water), to spring out, to surge
2. to appear (esp. suddenly) (sweat, tears, etc.), to sweat, to cry
3. to feel emotions (e.g. joy, bravery, etc.), to spring up (e.g. an idea, emotions, clouds), to well up, to arise
4....
涌出，喷涌而出，迸发而出，奔涌；出现（尤指突然出现汗水、泪水等），出汗，哭泣；感受情感（如喜悦、勇气等），迸发（如灵感、情感、云朵），涌起，升起；孵化，繁殖，滋生（尤指寄生性昆虫等）