英国：在英国有什么不用说出的规矩

<span><br /></span><span><br /></span><p style="color:#333333;font-weight:normal;font-size:16px;line-height:30px;font-family:Helvetica,Arial,sans-serif;hyphens:auto;text-align:justify;" data-flag="normal"><a target="_top" style="color:#4990E2;text-decoration:none;"><span><span>What are some unspoken rules in the U.K.?</span></span></a></p><span><br /></span><span><br /></span><span><br /></span><span><br /></span><span><br /></span><span><br /></span><span><br /></span><span><br /></span><span><br /></span><span><br /></span><span><br /></span><span><br /></span><span><br /></span><span><br /></span><p style="color:#333333;font-weight:normal;font-size:16px;line-height:30px;font-family:Helvetica,Arial,sans-serif;hyphens:auto;text-align:justify;" data-flag="normal"><span><a style="color:#4990E2;text-decoration:none;"><span><img data-key="0" src="https://qph.fs.quoracdn.net/main-thumb-348057649-100-xjqnacspozpbizolzjdfcrjoennljszr.jpeg" alt="Graham Short" /></span></a></span></p><span><br...