可以试试这个。Costco前阵子有卖。

https://www.amazon.com/Nitrofit-Deluxe-Plus-2HP-Motor/dp/B00TJ3M8E0/ref=asc_df_B00TJ3M8E0/?tag=hyprod-20&linkCode=df0&hvadid=309821907754&hvpos=&hvnetw=g&hvrand=504997884223804193&hvpone=&hvptwo=&hvqmt=&hvdev=c&hvdvcmdl=&hvlocint=&hvlocphy=9032143&hvtargid=pla-571964388897&psc=1#customerReviews