1·I have learned to open the bottle with one hand and sort of[3] tuck a pill in the knuckle joint.
我已经学会用一只手打开瓶子，藏一片药在膝关节里。
2·This wire was then slowly pulled until the joint in large knuckle in the middle of each finger popped.
然后电缆慢慢拉伸手指，直到每根手指中间的大关节发出响声。
3·At the same time, it introduces the data communication system between base joint cell and PC control system or between base joint cell and knuckle cell respectively.
同时，根据数据传输量的不同要求，分别设计并实现了基关节单元与上位机之间、基关节单元与指节单元之间的数据通信系统。
4·Knee joint never to knuckle over.
关节决不突出。