async *transform(source) {
在这个“验证真空期”，保持对上游基础设施的战术性配置，同时在中下游寻找“商业模式验证”的先行者，或许是最稳妥的投资策略。，详情可参考safew官方下载
。业内人士推荐谷歌浏览器【最新下载地址】作为进阶阅读
Experts say more genetic tests will need to be offered to high-risk men in future, in order to work out how many are affected.
// Stateful transform — a generator that wraps the source。夫子对此有专业解读