Nonradioactive
n. 非放射性
🗣️ 情景例句
Will you be stopping anywhere else before going to the train station.
去火车站之前是否还到别的地方？
He that never climbed never fell.
不向上爬的也不会下跌。
In 1975, a primitive machine called the Altair, was launched in the USA.
1975年，美国推出了一台被称为“牛郎星”的原始机型。