hard

坚硬的, 硬的, 难的, 艰苦的, 困难的, 坚固的, 猛烈的, 艰难的, 结实的, 确实的

dispassionate;; resisting weight or pressure; (of light) transmitted directly from a pointed light source

坚硬地, 努力地, 辛苦地, 接近地, 猛烈地, 牢固地