1·If the dog's hackles are up, gives a low decibel growl, or engages in a predatory, stalking posture, then there is probably a danger in the environment.
如果狗颈部的毛都竖立起来，或是它发出低分贝咆哮，或是呈掠夺、跟踪姿势，那么周围肯定存在危险。
2·Decibel values correspond to various sounds.
分贝值对应不同的声音。
3·The decibel range for five bars of reception is so large because precise measurement in such an area is less important than in areas with poor reception.
五格信号强度的分贝范围很大，因为在信号好的地方精确测量信号并没有在信号差地方测量那么重要。
4·A Danish study found a 27 percent increase in stroke risk for every 10 decibel increase in street noise for those over 65.
一项来自丹麦的研究表明，对于年龄超过65岁的人，街道噪声每增加10分贝，心脏病突发的危险就增加27%。
5·If the dog's hackles are up if it gives a low decibel growl or if it engages in a predatory stalking posture then there is probably a danger in the environment.
如果狗颈部的毛都竖立起来，或是它用低分贝咆哮，或是呈掠夺、跟踪姿势，那么周围肯定存在不安全因素。