Our school is three times the size as theirs.
Our school is three times as big as theirs.
一楼是4倍数吧……
帮我翻译句子（中译英）：我们学校是他们学校的三倍大。（翻译成英文）
Our school is three times the size as theirs.
Our school is three times as big as theirs.
一楼是4倍数吧……