他解开交叉的双臂，放松地靠在沙发上。

He ___uncrossed his arms and leaned back on the sofa.

交警正在指挥车辆，将之前合并的车道重新分开。

The traffic officer is directing cars by ___separating the previously merged lanes.

谈判专家耐心地澄清了双方的误解。

The negotiator patiently ___clarified the misunderstandings between the two sides.