n. 标准,规格;旗,军旗;度量衡标准;直立支柱;
adj. 标准的,合格的;普遍的,一般的;公认为优秀的;
🗣️ 情景例句
Work harder and practice more.
要更加努力地学习,更加勤奋地操练。
I want to extend my warmest welcome to all of you.
热烈欢迎大家。
you have the choice of very expensive organically-grown vegetables or a steady diet of pesticides every time you think you're eating fresh salads and vegetables, or just having an innocent glass of water!