pre check的相关资料：
临近单词
Prebil
PRE
precooling of perishable goods
precordial electrocardiography
pre-stressed anchorage cable
pre and postmenstrual bleeding
Pre-Production Proveout Test
Premarital medical examination
pretrial preparatory procedure
pref. by Charles Bukowski.
Preganacy induced hypertension
pre-stressed concrete bridge
