letters
n. 信；字母
sp. 名词letter的复数形式.
近义词：literature，culture，cultivation，knowledge，education，literacy，erudition，
英英释义
Noun
- the literary culture;
"this book shows American letters at its best"
- scholarly attainment;
"he is a man of letters"
例句
用作名词(n.)
- Our letters must have crossed in the mail.我们的信一定在邮寄途中互相错过了。
- He always replied rather tardily to my letters.他对我的信总是迟迟不作答覆。
- The teacher erased the letters on the blackboard.老师擦掉了黑板上的字母。
- It's better to put letters at the inlet and outlet.最好在进口和出口处标上字母。