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Finding these optimization opportunities can itself be a significant undertaking. It requires end-to-end understanding of the spec to identify which behaviors are observable and which can safely be elided. Even then, whether a given optimization is actually spec-compliant is often unclear. Implementers must make judgment calls about which semantics they can relax without breaking compatibility. This puts enormous pressure on runtime teams to become spec experts just to achieve acceptable performance.
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Москвичи пожаловались на зловонную квартиру-свалку с телами животных и тараканами18:04
《施政報告》引用了特區政府統計處2019年6月出版的《飼養貓狗的情況》專項調查數字，香港有24.19萬戶居民飼養貓狗，佔整體住戶9.4%。其中，飼養狗隻住戶14.75萬戶，佔整體住戶5.7%，即約每18戶中就有一戶養狗。