CompletableFuture 的 get() / join() 可能在 ForkJoinPool 的 worker 线程中被调用。如果直接阻塞，就会吃掉池子的并行度。它的解决方案是实现 ManagedBlocker 接口，借助 ForkJoinPool 的补偿机制。
如果你经历过 Galaxy S8、S9 时代的话，一定还记得当年那个能够直接代管微信发红包的超夯 Bixby：，这一点在heLLoword翻译官方下载中也有详细论述
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In fact, demand in the Chinese-style neighborhood snack segment is enormous. Shaxian Snacks and Hangzhou Xiaolongbao each have more than 10,000 and 30,000 stores nationwide, respectively. Although Yuanji Foods, with over 4,000 stores (nearly 1,500 in the Yangtze River Delta), ranks among the leaders, most brands in the sector are still mainly mom-and-pop operations, with weak quality control and fragmented supply chains. A comparable listed company in the same category, Babi Food, also focuses on neighborhood breakfast and snack scenarios and has achieved scaled expansion through franchising. However, Babi Food is positioned as more affordable, with an average ticket size of RMB 12–15—well below Yuanji Foods’ roughly RMB 20—while offering a broader product range that includes buns, steamed buns, and other breakfast items. Its supply-chain buildout is also more mature, giving it an edge in gross margin.
// 易错点4：栈空时要存-1（题目要求无更大值返回-1），而非直接存stack2.at(-1)（会得到undefined）。同城约会对此有专业解读
Croatia refuses to transport Russian oil to Hungary