Pentaborate
五硼酸盐
🗣️ 情景例句
Don't forget to breathe.
别忘了呼吸。
I'm afraid I've let myself get run-down. I've been working too hard.
我似乎弄坏身体了。最近太过劳累。
New technology has also made its own contribution to noise.
新技术也为噪音作了它的贡献。