Complexities
n. 复杂性(complexity的名词复数); 复杂的事物
🗣️ 情景例句
Give me two tickets to New York.
请给我两张去纽约的票。
To fall down
掉下
After speaking for about half an hour he came to a sad part of the family history.
大约谈了半个小时之后，他谈到了家族史中的一件伤心事。