Caching lets you avoid creating the object and calling its data method at the expense of memory on the Web server; this might be a good trade-off.是什么意思_Caching lets you avoid creating the object and calling its data method at the expense of memory on the Web server; this might be a good trade-off.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句