第二斜桅

例句：

1. 1. The second-class train is much slower than the first-class one.
   二等火车比一等火车慢得多。
2. 2.The secondary school students are preparing for their entrance exams.
   中学生正在为入学考试做准备。
3. 3.The secondary market is where people buy and sell goods that are not on the main market.
   次级市场是指那些不在主要市场上买卖的商品。