younger brother
英 [jɡ(r) br(r)] 美 [jɡr brr]
弟弟;小弟;幼弟
例句：
He had a younger brother who always publicly upstaged him
他有一个弟弟，总是公然抢他的风头。
After all, he is your younger brother.
他究竟是你弟弟啊。
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