Certifying
v. （尤指书面）证明( certify的现在分词 ); 发证书给…; 证明（某人）患有精神病; 颁发（或授予）专业合格证书
✅ 同义词
🗣️ 情景例句
Thank you.
谢谢你。
Thank you for your attention.
谢谢大家专心聆听。
It's very hot. It's summer in Australia now!
很热。澳大利亚现在正值夏天！