Radioindicator
[化] 放射性指示剂
🗣️ 情景例句
Don't let me interrupt you.
别让我打搅你们。
Many wells, many buckets.
井多吊桶也多。
He is now satisfied merely to try to stand up, but as soon as he does so a porpoise knocks him flat.
此时的海龟，只要能站起来就满足了，但它刚站起来，就被一只海豚击倒。