你要去街邊補鞋檔，話打鞋碼，師傅就會幫你打半月形嘅鞋碼喺鞋底，噉就唔會𨃩㗎喇。
If you go to the street to mend your shoes, and say hit the shoe size, the master will help you hit the half-moon shaped shoe size on the sole, and then you won't make money.