Gatekeeping
守门
🗣️ 情景例句
You and I are very busy these days.
这些天来我们俩都很忙。
I understand all your prices are on CIF basis. We'd rather have you quote us FOB prices.
得知你方报的都是到岸价，希望能给我们报船上交货价。
or even the universe itself, must in the nature of things 'wear out'.
甚至宇宙本身，从事物的本质上来说都会磨损掉"。