difficult词性转换：difficultly
例句
1.
It raining, the little girl helped her grandmother along difficultly.
下雨了，那个小女孩扶着她的祖母艰难地向前走着。
2.
All of these make enterprises control cost more difficultly.
所有这些都使企业控制成本愈加困难。
3.
Development in Treatment Technology for Toxic Industrial Wastewater Degraded Difficultly
有毒难降解工业废水处理技术研究进展
1．difficulty;2．physical;3．worry
difficult英 ['dɪfɪk(ə)lt] 美 ['dɪfɪkəlt] 形容词. 困难的，费力的，难做的，难解的网络. 艰难的，难以，不易相处的difficulty英 ['dɪfɪk(ə)lti] 美 ['dɪfɪkəlti] 名词. 困难，难度，困境，难题网络. 难事，难点，困难度变形. 复数：difficulties
