Tetraborane
四硼烷
🗣️ 情景例句
Please give him the message.
请转告他。
May I speak to Mr. Johnson, please?
我想请约翰先生听电话好吗？
So he had gone to the stores and had obtained a fixture that fitted both the tap on the supply line and the end of the air-line.
所以他就到仓库找到一个既适合供应管也适合供气管的接头。