钟摆正在从左到右来回摆动。
The pendulum is swinging ___from ___side ___to ___side.
笼中的动物紧张地来回踱步。
The caged animal paced nervously ___from ___side ___to ___side.
暴风雨期间,船左右摇晃。
During the storm, the boat rocked ___from ___side ___to ___side.