Appreciate is a verb with multiple meanings:
1. To recognize the full worth of something: "I really appreciate your help."
2. To understand a situation fully: "I don't think you appreciate how serious this is."
3. To increase in value over time: "This painting will appreciate in value."
Common collocations: deeply appreciate, greatly appreciate, truly appreciate
Appreciate这个词儿可有意思了，老外用得可溜了，咱得整明白喽：
1. 表示"感激"：比如"哥们儿，真感谢你帮忙啊！"（I really appreciate your help）
2. 表示"理解"：比如"你丫是不是没整明白这事儿多严重啊？"（You don't appreciate how serious this is）
3. 表示"升值"：比如"这幅画儿以后肯定值钱"（This painting will appreciate in value）
常见搭配：特别感谢（deeply appreciate）、非常感激（greatly appreciate）、真心感谢（truly appreciate）
小贴士：老外说"I'd appreciate it if..."就是"要是...就太感谢了"的意思，比如"要是你能早点来就太感谢了"（I'd appreciate it if you could come earlier）