Fold one's hands, arms, or legs. On reaching the landing-place, he leaned his back against the balusters and folded his arms. 交叉起某人的手,臂或双腿。他走到楼梯转角,依着栏杆,叉起两臂。
On reaching the landing-place, he leaned his back against the balusters and folded his arms. 他走到楼梯转角,依着栏杆,叉起两臂。
On reaching the landing-place, he leaned his back against the balusters and folded his arms. The force required depends on the length of the lever arm used. 他走到楼梯转角,依着栏杆,叉起两臂。所需的力取决于所使用杠杆臂的长度。