Jim is a good-at-maths boy
这已经是个完整的句子了 不用加 be
good-at-maths 几个词连起来构成 形容词
He is a two years old boy
He is a two-year-old boy
或者用 定语从句
Jim is a boy who is good at mathes
望采纳!祝学习进步!
Jim is a good-at-maths boy
这已经是个完整的句子了 不用加 be
good-at-maths 几个词连起来构成 形容词
He is a two years old boy
He is a two-year-old boy
或者用 定语从句
Jim is a boy who is good at mathes
望采纳!祝学习进步!