1. The joint owners of the car argued whether the footbrake or the handbrake should be applied.
    合资的车主们在争论着应该用脚刹车还是用手刹车.

2. The joint owners of the car argued whether the footbrake or the handbrake should be applied.
    而合资的车主们还在争论着应该用脚刹车还是用手刹车.

3. Many new structures are built with a new type of steel joint, an I-joint, which appears to be the most durable type of joint.
    许多新式结构都采用了一种新型的钢接合方法，即I形接合，它看起来是种最耐用的接合。