英语翻译
我有两个问题,请高手和有心得者为我澄清疑惑：
1、A.police car pulled up beside me and a semi-gargantuan cop jumped out.
semi-gargantuan是否是：“有点高大“.
2、 I was unshaven ,so perhaps I looked like an extremely derivative criminal.
全句译为：“我因没刮胡子可能由此我看来像个极端的罪犯.“
derivative 意为：“由外表（没刮胡子）推测出“.