const currentTime = posToTime.get(currentPos);
async function checkEndpoint(url) {
，详情可参考快连下载安装
It's not yet clear why researchers decided to point Webb in its direction, but little is known about the nebula, including the mass of the star creating it. That matters because a more massive star could eventually explode as a supernova, while a smaller, sun-like star would keep shrugging off layers of material until only a dense core remains and cools over time.，这一点在safew官方版本下载中也有详细论述
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