Substratification
分层
🗣️ 情景例句
You always know the right thing to say.
你说话得体。
I meet the boy whose aunt is an editor.
我遇到那男孩的姑妈是编辑。
They saw many old things on show in glass-topped tables.
他们看到了在带玻璃罩的桌子里展出的许多古老的东西。