他的手已经伸到了信号铃的拉绳上，但是，梅吉那冷酷严厉的目光制止了那只手。
His hand had gone to the 29 bell cord, but Meggie's coldly fierce gaze 30 stilled it.
被训练成通过发出类似于电话铃或门铃声等信号，给聋子或听力受损者提供帮助的导聋犬。
Hearing dog: a dog trained to assist a deaf or hearing-impaired person by signaling the occurrence of certain sounds, such as a ringing telephone or doorbell.
应用推荐