如何使用 "hard" 造句

1. It was hard enough before .
这之前已经够难了。
2. Running a company was hard work .
经营一家公司很辛苦。
3. Gonorrhea becomes hard to treat .
淋病将变得极难治疗。
4. These special effects are hard !
这些视觉特效制作好难!
5. The result could be a very hard landing .
结果可能是非常严重的硬着陆。