Radiostrontium
n. [化] 放射性锶
🗣️ 情景例句
He's independent,
他的独立性强，
What sort of guarantee do you offer on your product?
你们提供什么样的产品保证呢？
Mrs.Richards realized that it must be the man from the Electricity Board who had come to read the metre.
理查兹夫人这才想到一定是供电局来人查电表了。