User contributions
- 07:20, 18 May 2020 diff hist +154 Tough sounds -un
- 07:15, 18 May 2020 diff hist -2 Tough sounds -ü-u (phrases)
- 07:14, 18 May 2020 diff hist +708 Tough sounds -ü-u (phrases)
- 07:14, 18 May 2020 diff hist +156 Tough sounds -ü-u
- 07:06, 18 May 2020 diff hist +157 Tough sounds -ou-uo
- 07:06, 18 May 2020 diff hist +540 Tough sounds -ou-uo (phrases)
- 07:02, 18 May 2020 diff hist -1 Tough sounds -e
- 07:02, 18 May 2020 diff hist +153 Tough sounds -e
- 07:00, 18 May 2020 diff hist -1 Tough sounds -e
- 07:00, 18 May 2020 diff hist +432 Tough sounds -e (phrases)
- 06:56, 18 May 2020 diff hist -1 Tough sounds r- (phrases)
- 06:55, 18 May 2020 diff hist -1 Tough sounds x-sh-, q-ch-, j-zh- (phrases)
- 06:55, 18 May 2020 diff hist +50 Tough sounds x-sh-, q-ch-, j-zh- (phrases)
- 06:53, 18 May 2020 diff hist +154 Tough sounds r-
- 06:53, 18 May 2020 diff hist +488 Tough sounds r- (phrases)
- 06:46, 18 May 2020 diff hist +153 Tough sounds x-sh-, q-ch-, j-zh- (phrases) →Tough Sound Words: x-sh-, q-ch-, j-zh- (B1)
- 06:45, 18 May 2020 diff hist +170 Tough sounds x-sh-, q-ch-, j-zh- →Tough Sound Words: x-sh-, q-ch-, j-zh- (A2)
- 06:43, 18 May 2020 diff hist +583 Tough sounds x-sh-, q-ch-, j-zh- (phrases)
- 06:39, 18 May 2020 diff hist -3 Tough sounds (advanced)
- 02:36, 18 May 2020 diff hist 0 Tough sounds (advanced) →B1 Tough Sounds