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一种帮助男性解决勃起困难或维持勃起困难的药物
a medicine that helps men with difficulties in getting or maintaining an erection
Viagra is a medication mainly used to treat erectile dysfunction in men, but it is not an aphrodisiac and does not increase sexual desire. It works by increasing blood flow to the penis, which helps men achieve and maintain an erection suitable for sexual activity. Viagra typically needs to be taken orally about 30 minutes to an hour before sexual activity.
- Some men use Viagra to enhance their sexual performance.
一些男性使用伟哥来增强他们的性能力。
- John noticed a positive difference after taking Viagra.
约翰在服用伟哥后注意到了积极的变化。
- The effects of Viagra typically last for a few hours.
伟哥的效果通常持续几个小时。
- The medication's active ingredient in Viagra is sildenafil.
伟哥药物中的活性成分是西地那非。
- It's important not to take more than the recommended dose of Viagra.
重要的是不要服用超过推荐剂量的伟哥。