ratio
n. 比, 比率
搭配：a与b的比率，用the ratio of a to b 的搭配形式
辨析：ratio是两个数字或量的比，如4:3
rate不是两个具体的数字的比，而是一个比率，如50%
1.The ratio of pupils to teachers was 30 to 1.
学生和老师的比率是30比1。
2.Does the term book-to-bill ratio sound familiar to you?
你对“订货与帐单比例”这个名词熟悉吗？
readily
adv. 乐意地,欣然,容易地
1.The sofa can be readily converted into a bed.
这张沙发可以很容易改成床。
2.He readily agreed to help us.
他欣然同意帮助我们。
3.Wherever he goes, he readily accommodates to changed conditions.
不管到哪儿,他都能迅速适应变化了的情况。
4.I can readily believe that she is lazy at home — she is very lazy at school.
我不难相信她在家很懒，她在学校就很懒。
rectify
vt. 改正, 矫正
辨析：rectify是正式用于，correct是日常用语
1.Please rectify the mistakes in my bill.
请改正我账单上的错误。
2.We will make great efforts to rectify the order of the tourism market.
大力整顿旅游市场秩序。
3.The organizers were forced to rectify this after the Chinese delegation made serious protests.
经中国代表团提出严重抗议后，会议组织者不得不改正。
4.The Chinese Government sincerely hopes that the governments in question will take measures to rectify the situation.
中国政府衷心希望，有关国家的政府能够采取措施，纠正这一做法。
reference
n. 提及, 涉及；参考, 查阅；引文; 参考书目；证明书; 推荐信; 证明人; 推荐人
搭配：with reference to 关于，就...而论
without reference 不论
1.The play is full of references to the political events of those days.
剧本涉及当时的许多政治事件。
2.The author does not give references.
作者没有注明参考文献的出处。
3.Does he have references from former employers?
他有以前的雇主写的证明吗?
