它们的喧闹声逐渐变为整齐划一的、带有威胁性的吼叫，还夹杂着刺耳的狂吠。
Their noise modulated to a concerted menacing growl punctuated by sharp yaps.
所以，焦点正在逐渐变为生活方式。
在线流媒体起初是年轻人的专利，但逐渐变为主流了。
Online video streaming began as a young person's hobby but has increasingly become mainstream.
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