YOU SAID:

Some of them can be extremely dangerous if appropriate precautions are not taken.

INTO JAPANESE

それらのいくつかは、適切な予防措置が取られていない場合非常に危険です。

BACK INTO ENGLISH

If some of them have not taken proper preventive measures is very dangerous.

INTO JAPANESE

それらのいくつかは、適切な撮影していない場合の対策は大変危険です。

BACK INTO ENGLISH

Some of them, if you have not taken appropriate measures is very dangerous.

INTO JAPANESE

措置をとっていない場合、それらのいくつかは非常に危険です。

BACK INTO ENGLISH

Some of them are very dangerous if not taken measures.

INTO JAPANESE

それらのいくつかは非常に危険な措置を取られていない場合です。

BACK INTO ENGLISH

Some of them is not very dangerous measures taken.

INTO JAPANESE

それらのいくつかは、非常に危険な措置ではありません。

BACK INTO ENGLISH

Some of them are not very dangerous measures.

INTO JAPANESE

それらのいくつかは、非常に危険なメジャーではありません。

BACK INTO ENGLISH

Some of them are not very dangerous measure.

INTO JAPANESE

それらの一部は非常に危険なメジャーではありません。

BACK INTO ENGLISH

Some of them are not very dangerous measure.