fours

n.

四人舞；四人赛艇，私人赛艇的全部成员，板球中得四分的一击( four的名词复数 )；

all fours（动物的）四足

1. The baby was crawling about on all fours.
   婴儿那时正在满处爬。
2. Group together in fours!
   每四人一组！
3. The baby often crawls on all fours.
   婴儿经常爬行。
4. The drawing is on all fours with the scene at that moment.
   那幅画和当时的景象完全一致。

All-fours maneuver for reducing shoulder dystocia during labor.
The Culdotomy FourS Two U procedure for transvaginal access to the peritoneal cavity.
Method of assessing involved facial areas: rule of fours.
Procédé pour augmenter l'énergie alimentant les fours à arc électrique
Innovative Surface Plasmon Resonance biosensing architectures
Bound magnetic polaron evidence in EuO ☆
Hydro-textural and dimensional approach for characterising wet granular media agglomerated by kneading
MAGNETIC PROPERTIES OF Gd DOPED EuO SINGLE CRYSTALS
Nanostructures for chemical recognition using ISFET sensors
Different surgical approaches to the sellar region: focusing on the "two nostrils four hands technique".