Eurypterida
板足鲎类
🗣️ 情景例句
in the past few weeks.
在最近几个星期。
Rome was not built in a (or one) day.
罗马不是一日建成的。
On arriving in England, they were taken to the Crystal Palace by train.
一到英国，火车就把他们送到了水晶宫。