(qiǎng, ㄑㄧㄤˇ) to strive; to make an effort [CE-DICT]
硬
(こう) (n) hardness [EDICT]
(yìng, ㄧㄥˋ) hard; stiff; strong; firm [CE-DICT]
于
(Yú, ㄩˊ) surname Yu [CE-DICT]
(yú, ㄩˊ) in; at; to; from; by; than; out of [CE-DICT]
是
(これ) (pn) (1) (uk) (See 何れ・1,其れ・1,彼・あれ・1) this (indicating an item near the speaker, the action of the speaker, or the current topic); (2) (hum) this person (usu. indicating someone in one's in-group); (3) now; (4) (arch) here; (5) (arch) I (me); (6) (arch) certainly; (P) [EDICT]