Beil
abbr. beiliegend (German=enclosed) （德语）（信等的）内附…，附件，封闭式的
🗣️ 情景例句
It is special. Happy anniversary.
确实很特别。结婚周年快乐！
Diseases come on horseback, but go away on foot.
病来如山倒，病去如抽丝。
The degree of secrecy naturally varies considerably.
保密程度自然差别很大。