1.0Save Ushttps://save-us.life/zhrich600338<blockquote class="wp-embedded-content" data-secret="yXkmQfeANM"><a href="https://save-us.life/zh/archives/29308">北美经常遭受龙卷风袭击</a></blockquote><iframe sandbox="allow-scripts" security="restricted" src="https://save-us.life/zh/archives/29308/embed#?secret=yXkmQfeANM" width="600" height="338" title="《 North America is often hit by Tornadoes 》—Save Us" data-secret="yXkmQfeANM" frameborder="0" marginwidth="0" marginheight="0" scrolling="no" class="wp-embedded-content"></iframe><script> /*! This file is auto-generated */ !function(d,l){"use strict";l.querySelector&&d.addEventListener&&"undefined"!=typeof URL&&(d.wp=d.wp||{},d.wp.receiveEmbedMessage||(d.wp.receiveEmbedMessage=function(e){var t=e.data;if((t||t.secret||t.message||t.value)&&!/[^a-zA-Z0-9]/.test(t.secret)){for(var s,r,n,a=l.querySelectorAll('iframe[data-secret="'+t.secret+'"]'),o=l.querySelectorAll('blockquote[data-secret="'+t.secret+'"]'),c=new RegExp("^https?:$","i"),i=0;i<o.length;i++)o[i].style.display="none";for(i=0;i<a.length;i++)s=a[i],e.source===s.contentWindow&&(s.removeAttribute("style"),"height"===t.message?(1e3<(r=parseInt(t.value,10))?r=1e3:~~r<200&&(r=200),s.height=r):"link"===t.message&&(r=new URL(s.getAttribute("src")),n=new URL(t.value),c.test(n.protocol))&&n.host===r.host&&l.activeElement===s&&(d.top.location.href=t.value))}},d.addEventListener("message",d.wp.receiveEmbedMessage,!1),l.addEventListener("DOMContentLoaded",function(){for(var e,t,s=l.querySelectorAll("iframe.wp-embedded-content"),r=0;r<s.length;r++)(t=(e=s[r]).getAttribute("data-secret"))||(t=Math.random().toString(36).substring(2,12),e.src+="#?secret="+t,e.setAttribute("data-secret",t)),e.contentWindow.postMessage({message:"ready",secret:t},"*")},!1)))}(window,document); //# sourceURL=https://save-us.life/wp-includes/js/wp-embed.min.js </script>https://save-us.life/wp-content/uploads/2023/12/unnamed-2023-12-24T110028.134.jpg1000750Tornadoes usually begin as extremely violent thunderstorms known as supercell thunderstorms. However, for a tornado to form, other very specific meteorological conditions are required. First, warm air must rise towards the storm clouds. As this air rises, it gains speed, creating an updraft. As more air is drawn into the updraft, it can change direction […]