查询词典 difficult to ascertain

be characteristic of be typical of：是....所特有的

characteristic? feature特征 | be characteristic of? be typical of是....所特有的 | difficult? hard? tough困难的

be characteristic of C be typical of：是....所特有的

characteristic C feature 特征 | be characteristic of C be typical of 是....所特有的 | difficult C hard C tough 困难的

be fed up：吃得过饱,极厌倦

24. in advance 预先 | 25. be fed up 吃得过饱,极厌倦 | It's difficult to assess the effects of these changes. 很难评价这些变化的影响.

be good at English：擅长英语

39.more difficult than ..... 比. . . . 更难 | 40. be good at English 擅长英语 | 41. hand in your homework 上交你的作业

be interested in Dolly：对多利感兴趣

109. find maths very difficult 发现数学很难 | 110. be interested in Dolly 对多利感兴趣 | 111. the first cloned sheep 第一只克隆羊

be involved in trouble：卷入纠纷

It would be difficult not to involve the child's father in the arrangements.这些安排... | be involved in trouble: 卷入纠纷 | 3. The police help keep order and protect us from crime. (P49) 警察帮助维持秩...

It is extremely difficult to be sure about：确信---是极其困难的

15. Sb has/have reason to do sth某人有理由做某事 | 16. It is extremely difficult to be sure about确信---是极其困难的 | 17. My point is that我的观点是

begin with ABC：从简单的开始

1、begin with ABC 从简单的开始 | That question is too difficult Let's begin with ABC 那个问题太难了. 让咱们从最简... | The exercises puzzled him . He wanted to begin with ABC 这些练习可难住他了. 他想从简...

begin with ABC：从简单开始

1. begin with ABC 从简单开始 | That question is too difficult.Let's begin with ABC. 那个问题太难了,让咱们从最简单开始吧. | 2. as easy as ABC 相当简单

The Beloved：被爱的人

Love is Difficult 爱是艰难的 | The Beloved 被爱的人 | After a Long Winter 长冬过后

seal oil pressure：密封油压

"seal of bearing ","轴承密封" | "seal oil pressure ","密封油压" | "seal ring ","密封环,止漏环"

osteographer：骨论学家

choreographer舞蹈动作的设计者 | osteographer骨论学家 | glyphographer电刻者