心室

例句：

1. 1. The heart's ventricles are responsible for pumping blood throughout the body.
   心脏的室负责将血液泵送到全身。
2. 2. During exercise, the heart's ventricles work together to increase blood flow.
   在运动时，心脏的室一起工作以增加血流。
3. 3. Heart disease often affects the heart's ventricles, leading to irregular heartbeats.
   心脏病常常影响心脏的室，导致心跳不规律。