本文不会深入讨论这一点，不过需要时可以很容易地添加安全检查。
This article doesn't get into all of that, but it's fairly easy to add when you need it.
“你的脸很有个性，”我评论道，胆子是越来越大了，不过这句评论很安全，没有女孩子抗拒得了奉承的。
"You have an interesting face," I commented. I was becoming quite daring, but it was a safe remark, few girls can resist flattery3.
宠物也很在意被主人关注到，不过他们的存在是安全的。
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