At the heart of BuildKit is LLB (Low-Level Build definition). Think of it as the LLVM IR of build systems. LLB is a binary protocol (protobuf) that describes a DAG of filesystem operations: run a command, copy files, mount a filesystem. It’s content-addressable, which means identical operations produce identical hashes, enabling aggressive caching.
（六）支持和引导社会组织、社会工作者、志愿者等社会力量参与社区治理，提供社区服务；
，这一点在WPS官方版本下载中也有详细论述
"Quite a difference," notes van Mulligen.，这一点在heLLoword翻译官方下载中也有详细论述
（应受访者要求，刘成、兰丽为化名），详情可参考safew官方下载