I am just wondering if you have received my previous email. I am sending it again just in case you might not have got it yet. Sorry for any incovenience that could cause.
中文意思：我想知道你是否收到此前发给您的邮件。我会再寄一次，以防您可能还没有收到。很抱歉给您造成的不便。
I am just wondering if you have received my previous email. I am sending it again just in case you might not have got it yet。
我不知道您是否已经收到我的邮件，冒昧地请允许我再次发送。
根据具体问题类型，进行步骤拆解／原因原理分析／内容拓展等。
具体步骤如下：／导致这种情况的原因主要是……