回複：再請教一下8老師，

您說我可以在H1 expire之前離境，然後在perm pending 一年之後再回來，可是perm pending 一年說明我h1已經expire,那我怎麽回來？
-Because the time you spend outside U.S. is not counted as your H1 time (e.g. you leave US 2 months before your 6 year h1 expires and that means you still have two months H1 left in the 6 year h1), you can use this H1 time (2 months) again. You just ask your employer file an H1 petition for this the same length as that you spend in China (2 months) and then, you can use this h1 approval notice to get an h1 visa to come back. After you enter US, you can file h1 extension before the h1 expires (within 2 months) beyond the 6 year limit.
還是說可以請這邊的律師做H1 recap把沒用的幾個月extent回來，然後在中國簽證再回來？有點想不太通，所以還得麻煩您，萬分感謝。