Pinyin
Strokes Order
1
2
3
4
5
6
7
8
9
10
11
12
13
Vocabulary
introduction; preface; foreword
Level
Advanced
HSK Level
7-9
to close up; hard to get to; out-of-the-way
Level
Intermediate
HSK Level
5
what goes on behind the scenes; inside story
Level
Advanced
HSK Level
7-9