if (stack.length 0 && stack[stack.length - 1] = curTime) {
curr = curr-next;，详情可参考旺商聊官方下载
圖像來源，GREG BAKER/AFP via Getty Images，详情可参考im钱包官方下载
“The Air Force has started performing better”: Zelenskyy says restructured air defenses are delivering results