noun / ~する noun:

• going about immersed or absorbed; pacing back and forth meditatively; being deep in thought

noun:

• restoring the declining fortunes; recovering from the discouraging situation; reversing the downward trend - four character idiom

noun / ~する noun:

• mixing and matching (clothes, accessories, etc.); wearing of an item of clothing in many different combinations

~する noun:

• to wind around

noun / ~の noun:

• frequent ➜ 頻繁

noun / ~する noun:

• taking back what one just said; eating one's words; negating one's previous comment, opinion, etc.

expression:

• three times a week

noun:

• Copernican revolution

adverbial noun:

• several times

expression:

• once more; once again

noun:

• fail-over; fault bypass

expression:

• once per week ➜ 週一日

noun:

• each time