1 guarantee

2 to guarantee

3 to ensure

4 to safeguard

5 to pledge

6 classifier: 个 gè

1 library

2 classifier: 家 jiā

3 classifier: 个 gè

1 love letter

1 abbr. for 書經|书经[Shū jīng]

1 to write

1 in support or witness hereof (idiom)

1 lit. to stare at the ceiling while writing a book (idiom); to put one's whole body and soul into a book

1 to start reading furiously, contrary to previous habit (idiom)

1 lit. to wave around one's bookbag (idiom)

2 fig. to show off one's erudition

3 a person who does so

1 I have much more to say than can be written in this letter (conventional letter ending) (idiom)