arbitrary词源亲子血型配对表The word 'arbitrary' was first ud in the English language in the 14th century. Initially, it simply meant ‘judgment or decision of an arbiter or mediator’ or ‘judgment or decision
1、The Four Corners Monument in the southwestern region of the United States, marking the place where the boundaries of Arizona, Colorado, New Mexico, and Utah interct.(A) States, marking the place(
