免费直运的，即在amazon商品页面 (product detail) 有写

Ships from and sold by Amazon.com.　(fulfilled by amazon的不买，运费有差别。）

Shipping: This item is also available for shipping to select countries outside the U.S.　

以下这种需要单独寄出的不买， 除非是可以接受单独运所产生的运费。

"This item must be shipped separately from other items in your order. Additional shipping charges will not apply."