你这种签证是一种在家相夫教子的签证，不能工作，除非申请工作许可（最终换签证）。

Employment Authorization:
 The spouse and/or child of a TN visa worker “shall not accept employment in the United States unless otherwise authorized.” 8 C.F.R. 214.6 (j) (3).
If a TD dependent wants to work in the U.S., "he or she must independently seek change of status to an employment-authorized nonimmigrant classification.” 58 FR 69205, 69209 (Dec. 30, 1993).