Semimajor
axis(椭圆的)半长轴
🗣️ 情景例句
Most people I meet have some English ability, but the ones who work hard at it really stand out from the crowd.
我遇到的多数人都会点英语，但只有那些刻苦学习的人才鹤立鸡群，给我深刻印象。
I only wear a tie on special occasions.
我只有在特殊场合才带。
There are some in the cupboard.
碗橱里有几只。