let imports = { ... };
// 记录答案：栈顶就是「当前元素右侧第一个更大值」（易错点3：别写反判断）
，这一点在heLLoword翻译官方下载中也有详细论述
手机的创新速度，随着手机形态的挖掘和现有科技的限制，大大降低，这个社会与行业的共识已经基本形成。在现有的产品形态下，指望智能手机还能像早期那样，掏出接踵而至的大创新，几乎是不切实际的幻想。
Venezuela's oil is also of poorer quality than its Saudi equivalent. Its sour, heavy crude is difficult to extract and refine, while its high sulphur content makes it corrosive to pipelines. A resurgence of Venezuela's industry could pose problems for Canada, which produces similarly viscous oil and exports much of it to the US, but analysts reckon the risk is minor.