Klimaktopedion
梯状平原
🗣️ 情景例句
He told me to call him about my project,
他叫我打电话给他， 跟他谈我的作品计划，
I can't remember what John was doing yesterday afternoon.
我不能记得约翰昨天下午正在做的东西。
Are you ready to sign?
准备好可以签名了吗？