单词	At the check-in
释义	At the check-in. 在机场登记处。
随便看	double blind experiment double-blind experiment double-blind experimental design double blind experiments double-blind experiments double blind method double-blind method Double-Blind Methods double blind procedure double-blind procedure double-blind procedures double-blind randomized Double-blind randomized controlled trial Double-blind Review double blinds double-blinds double-blind single delamination double-blind studies Double-Blind Studies double-blind study double -blind study double blind technique double-blind technique double blind test double-blind test