Cistine
氨基酸
🗣️ 情景例句
Nixon also used chopsticks at the welcoming banquet in his honor.
尼克松在为其到来而举办的欢迎宴会上也使用了筷子。
Rising volcanic ashes
升起的火山灰
We'd better not just talk; let's go to the river to bathe.
我们最好别光顾说了；咱们去河里游泳吧。