<まずはこれだけ>

(1)

[uː] u uh u

[oː] o oh oo

<チャレンジ>

(2)

u [uː]  oh [oː]  uh [uː]

o [oː]  uh [uː]  oo [oː]

muh [muː]  moh [moː]  muh [muː]

<チャレンジ>

nun [nuːn]  mohn [moːn]

uhr [uːɐ]  ohr [oːɐ]