這麽說吧,要是這麽糾結意味著

1, 工程師出身

2, 工程師思維

3, 要是這麽糾結, 就別當地主了. :)

估麽著來吧, buying price + 20,000 as lower case, buying price as upper case.

Both >1% super,

both under 1% walk.