SD 看到的deal
https://www.lenovo.com/us/en/p/accessories-and-software/keyboards-and-mice/mice/78016250?orgRef=https%253A%252F%252Fslickdeals.net%252F&clickid=TtWQZPyt0xycWyvwPKztKXVxUkp2k-X%3AUXUfQM0&irgwc=1&PID=10451&acid=ww%3Aaffiliate%3Abv0as6&cid=us%3Aaffiliate%3Acxsaam
Discount code: MX2S