网上有如下问题和回答
Q : Can an H-1B alien travel outside the U.S.?
Yes. An H-1B visa allows an alien holding that status to reenter the U.S. during the validity period of the visa and approved petition.
H1-B不是出境就失效，回来得重新签证吗？上面那句话好像是在有效期内可以多次入境不需签证的意思？或者我理解错了？