webclip 安全

ān quán safe; secure; safety; security

认证

rèn zhèng to authenticate; to approve

常见问题

cháng jiàn wèn tí common problems; FAQ

解答

jiě dá answer; explanation; solution (to a math equation)

教程

jiào chéng lecture course; teaching module at university; tutorial; textbook; course of study

TG:@tflianzhushouvka