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鼠标 似的 士大夫假大空十分 士大夫教科书地方
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function doMouseMove() {
var tr = document.body.createTextRange();
tr.moveToPoint(event.clientX, event.clientY);
// Expand to the entire word under the mouse.
tr.expand("word");
window.status = tr.text;
}
document.onmousemove = doMouseMove;
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