The ideas are half-baked. 그 아이디어는 현실성이 없어.

[Jes.sec(윤은영)]

The ideas are half-baked.
그 아이디어는 현실성이 없어.

The idea of which we have to speak only English during M.T is half-baked.

[James(許鎭)]

great example!

[James(許鎭)]

The idea that we have to speak (in) English only during..../ The idea of speaking English only during... ^^;