每一顆蘋果都被咬一口後，即可獲得1000分！

U

封面

usually

1

usual

2

useful

3

user

4

use

5

upstairs

6

upper

7

up

8

until

9

university ..

10

universe

11

unique

12

uniform

13

unhappy

14

underwear

15

understand ..

16

underline

17

under

18

uncle

19

umbrella

20

ugly

21