单词 pre-conceptional 释义 pre-conceptional, a.[pre- B. 1.]Previous to conception.1904Brit. Med. Jrnl. 17 Dec. 1644 The first, or preconceptional period of germinal life.1933Jrnl. Amer. Med. Assoc. 25 Nov. 1703/1 (heading) Preconceptional and prenatal in...