Senses
收缩/ 收縮 to contract
to contract or shrink; to become smaller or shorter in length, width, or volume
收缩/ 收縮 to pull back
to pull back forces or resources; to shift from a spread-out position to a concentrated one
收缩/ 收縮 systole
the phase of the heartbeat when the heart muscle contracts and pumps blood from the chambers into the arteries