they have no idea at all how busy we were
问题描述:
they have no idea at all how busy we were
答
绝对是一个正确的句子.他们(现在)一点也不知道我们(过去/当时)有多忙.they have no idea (= they don't know),at all (前面有no,加上这个 at all,意思等于 not at all) .how busy we were:我们过去/那时候/当时...