Leonard jumped in his car and started backtracking.伦纳德跳进车里，开始原路折返。Some backtracking is probably inevitable.有时改变决定可能是不可避免的。The backtracking mechanism is an important facility for programming in logic.回溯机制是逻辑程序设计的重要设施.Leon...
Pam had never learned that there were men who preyed on young runaways.帕姆从来不知道有人专门坑骗离家出走的年轻人。Pam was in the middle of basting the turkey.帕姆正在往烤鸡上淋油。Before Pam made the cake she read the directions on the packet.帕姆在做糕点之前看...