active region的用法和樣例：
例句
用作名詞 (n.)
- Another linear zone extends in a southwesterly direction from the region of most intense activity into northeastern Arkansas.
另一條線(xiàn)狀區域是從最強烈的地震活動(dòng)區起，向西南延伸到阿肯色州東北部。 - To keep astronauts in the equivalent of an equatorial region, the living quarters of the spacecraft would have to be doughnut-shaped.
為了讓太空人保持相當于赤道區的狀況，太空船的活動(dòng)區必須做成甜甜圈狀。
