Cffc
abbr. counterflow film cooling 逆流薄膜冷却
🗣️ 情景例句
Cash only, no checks.
只收现金，不收支票。
First impressions are most lasting.
最初的印象最为持久。
With the invention of writing, a great advance was made, for knowledge could then be not only communicated but also stored.
随着书写的发明，又迈进了一大步，因为这样一来，知识不仅能交流，而且能储存了。