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
If I work hard now, when I retire I'll be very well off financially.
如果我现在努力工作的话，退体后就会很富有。
Many people were against the new freeway.
许多人反对新的高速公路。
Houses -- often three storeys high -- were built of stone.
房子一般有3层楼高，用石块修建。