Radiostrontium
n. [化] 放射性锶
🗣️ 情景例句
I've put an X next to the place where you should sign.
我已在你该签名的地方后面标示了X。
You may go farther and fare worse.
一动不如一静。
When you have finished the letter, you make any changes you wish, check it and print it.
当你打完信件，你可以随意修改、检查，然后打印。