想托运箱子，AA的policy中最大不超过28，但是dimension它 没说是body dimension还是overall dimension.有经验的朋友说说吧。谢谢


Weight and size We calculate the size limits of your bag by adding the total outside dimensions of each bag, length + width + height.
For all regions, your checked baggage allowance is:

Dimension: 62 in / 158 cm
Weight: 50 lbs / 23 kgs