Specific activity
[化] 比活; 比活度; 比放射性; 放射性比度\\n[医] 特殊活动
🧩 词语组成解析
🗣️ 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。
I have juice,cereal,toast and coffee for breakfast.
我的早餐有果汁，谷物，烤面包和咖啡。
Half an hour later ,she woke up and began to cry.
半小时后她醒了，哭了起来。