Thickskin
n. 皮厚的人; [比喻]厚脸皮；(对批评等)麻木不仁的人
🗣️ 情景例句
I know they are.
我知道他们会。
The older the goose the harder to pluck.
越老越狡猾。
What was the population of the less developed countries in 1950?
1950年不太发达国家的人口是多少？