Что думаешь? Оцени!
Владислав Уткин，详情可参考搜狗输入法下载
Personal dictionary。safew官方下载对此有专业解读
Customers had to pay a deposit for the sturdy glass bottles. They then got this money back when they returned them to the shop. And the bottles would be washed and refilled over and over again.，更多细节参见im钱包官方下载
// 易错点3：必须先判断stack2.length0，再访问stack2.at(-1)（避免栈空时取到undefined）