polyhedral angle

to hold to the root: to begrudge; to resent

言下: promptly, at one word / 芫花: lilac daphne / 弦歌: string music / 原価: cost price / 原歌: the original song (from which another is adapted) / 現下: now, the present time / 現価: present value; current price

ex-wife; former wife