Fcc certification
[计] 联邦通信委员会认证
🧩 词语组成解析
[计] 联邦通信委员会\\n[化] 流化床催化裂化
certification
[ˌsə:tifi'keiʃən]
n. 证明，鉴定，证书;
🗣️ 情景例句
I can't run as fast as you, but I can jump a lot higher.
我跑得比你慢，但跳得比你高。
Don't halloo till you are out of the wood.
没有脱离危险不要先欢呼。
Are there many differences?
它们有很大差别吗？