Pentaborane
n. [化]戊硼烷(用作火箭推进剂)
🗣️ 情景例句
Marilyn, Susan, let's not begin to worry about Michelle and Max.
Marilyn， Susan不要开始担心Michelle和Max。
It's available in a variety of sizes at convenience stores and department stores as well.
有各种大小型号，在便利商店和百货公司均有。
Suddenly, she saw a man near a bus stop.'I can ask him the way'.she said to herself.
突然，她在公共汽车站附近看到一个男人。“我可以向他问路，”她想。