{"version":"1.0","provider_name":"18K \uc601\uc5b4","provider_url":"https:\/\/18kenglish.com\/ko","author_name":"admin","author_url":"https:\/\/18kenglish.com\/ko\/author\/admin\/","title":"4\ud559\ub144 \ucd08\ub4f1\ud559\uad50 \uc5b4\ud718 \uce58\ud2b8 \uc2dc\ud2b8: ESL \ud559\uc0dd\uc744 \uc704\ud55c 43\uac00\uc9c0 \ud544\uc218 \ub2e8\uc5b4","type":"rich","width":600,"height":338,"html":"<blockquote class=\"wp-embedded-content\" data-secret=\"rtpugvYqxV\"><a href=\"https:\/\/18kenglish.com\/ko\/4\ud559\ub144-\ucd08\ub4f1\ud559\uc0dd\uc744-\uc704\ud55c-\ud544\uc218-\uc5b4\ud718-\uc694\uc57d\ud45c\/\">4\ud559\ub144 \ucd08\ub4f1\ud559\uad50 \uc5b4\ud718 \uce58\ud2b8 \uc2dc\ud2b8: ESL \ud559\uc0dd\uc744 \uc704\ud55c 43\uac00\uc9c0 \ud544\uc218 \ub2e8\uc5b4<\/a><\/blockquote><iframe sandbox=\"allow-scripts\" security=\"restricted\" src=\"https:\/\/18kenglish.com\/ko\/4\ud559\ub144-\ucd08\ub4f1\ud559\uc0dd\uc744-\uc704\ud55c-\ud544\uc218-\uc5b4\ud718-\uc694\uc57d\ud45c\/embed\/#?secret=rtpugvYqxV\" width=\"600\" height=\"338\" title=\"&#8220;Grade 4 Elementary Vocabulary Cheat Sheet: 43 Essential Words for ESL Students (\u5c0f\u5b78\u56db\u5e74\u7d1a\u8a5e\u5f59\u5c0f\u6284)&#8221; &#8212; 18K English\" data-secret=\"rtpugvYqxV\" frameborder=\"0\" marginwidth=\"0\" marginheight=\"0\" scrolling=\"no\" class=\"wp-embedded-content\"><\/iframe><script>\n\/*! This file is auto-generated *\/\n!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);\n\/\/# sourceURL=https:\/\/18kenglish.com\/wp-includes\/js\/wp-embed.min.js\n<\/script>","thumbnail_url":"https:\/\/18kenglish.com\/wp-content\/uploads\/2026\/03\/grade4-vocabulary-classroom-600x400.jpg","thumbnail_width":600,"thumbnail_height":400}