arduous etymology
读音：英 []
美[]
arduous etymology 基本解释
艰难的词源
重点词汇
arduous adj. 努力的；艰巨的；难克服的；陡峭的
etymology n. 词源学，词源说明
最新查询单词：
很伤心英文
throwaway
throw oneself into
throw on
throw off
throw in
throw down the gauntlet
throw down
throw back
throw about
更新时间：2026-11-01 05:17:06
更新时间：2026-11-01 05:17:06
arduous etymology是什么意思 arduous etymology怎么读 arduous etymology中文意思 翻译