Sucking out juices from orange pieces, grapefruit pieces, challah dipped in wine, etc.
Understanding the Difference Between the Melacha of Kotzair-קוֹצֵר (Reaping) and Gozez-גּוֹזֵז (Shearing);
(Squeezing materials.) understanding the two different types of "סחיטה" (squeezing);