Thanks so much for all your advices, especially Aggiebb! I will check out the itin and find out the possible locations to pump milk :) I still have a few days to reply the secretary whether I confirmed to go or not. Hope I can work out the logistics!
When is your trip? I was on biz trip when my son is 6mths. 1 mths prior to that I substitute one meal a day with formula and then pump and freeze. Then I have enough stock for my Bb for the period. I pumped at hotel during trip and ask hotel to store in freezer right after. When I checked out of hotel, I put them all in a big thermo bag with a lots of cold packs n bring back to hk.
教 養 孩 童 , 使 他 走 當 行 的 道 , 就 是 到 老 他 也 不 偏 離 。 (箴22:6)
Train up a child in the way he should go: and when he is old, he will not depart from it. (Proverbs 22:6)