a few months ago还是a few month ago a few months ago是固定短语吗

a few months ago\u7528\u4ec0\u4e48\u65f6\u6001

a few months ago\uff1a\u51e0\u4e2a\u6708\u524d\u3002\u5e94\u8be5\u662f\u7528\u4e00\u822c\u8fc7\u53bb\u5f0f\u3002\u4f46\u5982\u679c\u540e\u9762\u8fd8\u6709\u4e00\u4e9b\u8fd9\u4ef6\u4e8b\u5173\u4e8e\u73b0\u5728\u5f71\u54cd\u7684\u8bed\u53e5\uff0c\u5c31\u7528\u73b0\u5728\u5b8c\u6210\u65f6\u3002\u5982\u679c\u662fsince a few months ago \u4e5f\u7528\u73b0\u5728\u5b8c\u6210\u65f6\u3002
\u5e0c\u671b\u53ef\u4ee5\u5e2e\u5230\u4f60\uff01
\u6c42\u91c7\u7eb3 \u6b22\u8fce\u8ffd\u95ee~

a few months ago\u662f\u56fa\u5b9a\u77ed\u8bed

a few months ago
\u51e0\u4e2a\u6708\u524d

A few months ago, we formally established the CARICOM Single Market and Economy.
\u51e0\u4e2a\u6708\u524d\uff0c\u6211\u4eec\u6b63\u5f0f\u6210\u7acb\u4e86\u52a0\u5171\u4f53\u5355\u4e00\u5e02\u573a\u548c\u7ecf\u6d4e\u4f53\u3002

a few months ago

a few 后跟可数名词 month 是可数名词 不能单独使用要用复数 months

a few months ago

扩展阅读：give away ... enthusiastic ... what s more ... in a few days ... a few months ago i was ... before long ... every few months ... a little minutes ... one more night ...