如果命令不存在，先装 Docker Desktop。
const curTime = posToTime.get(pos);
，更多细节参见谷歌浏览器【最新下载地址】
await scene.play(new FadeOut(square));
Musician Letty Stott plays a replica of a carnyx to Fraser Hunter, presenter Alice Roberts and Gary Trimble during filming for Digging for Britain