rare means not seen or found very often, or not happening very often. ()
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犬的舌呈蓝黑色。
A. 沙皮犬
B. 哈巴狗
C. 京巴犬
D. 苏牧犬
He is not a bit fond of music. 他根本不爱好音乐。 ()
Field is a term widely used in sociolinguistics to refer to “varieties according to use.” ()