Radioactive purity
[化] 放射性纯度
🧩 词语组成解析
🗣️ 情景例句
Richard, if you go out
Richard，假如你去
The typewriter is out of order.
这打字机出毛病了。
In the torchlight, he caught sight of a figure whom he immediately recognized as Bill Wilkins, our local grocer.
借着电筒光。他看见一个人，马上认出那是本地杂货店主经比尔。威尔金斯。