Tetraoxypyrimidine
四氧嘧啶
🗣️ 情景例句
You may be offered coffee, and then you should immediately announce the reason for your visit.
他们会给你冲咖啡，然后你应该尽快说明来意。
Early to bed and early to rise,makes a man healthy,wealthy and wise.
早睡早起，使人健康、富有而聪明。
'Excuse my interrupting you.
“请原谅我打断了您。