尽量避免使用行话。
哪怕收信人水平很高，也应避免使用行话冗句。
Even if your audience is highly educated, you should avoid big words and long, complex sentences. People aren't stupid;
避免使用行话。任何那些你在报纸中不经常读到的词都是令人怀疑的。
Avoid jargon. Any word you don't read regularly in a newspaper is suspect.
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