R& D

1.[c][u]英语字母表的第 18 个字母the 18th letter of the English alphabet

1.女王，国王（源自拉丁语 Regina、Rex）Queen; King (from Latin ‘Regina’; ‘Rex’)

2.（尤用于地图）河，江(especially on maps) River

4.（用于服务于国王或女王或受其赞助的组织名称）王室的，皇家的Royal

1.(=refrigerator)

2.(=rod)

3.【医】〈外〉(=recipe)处方

4.(=radical)

5.(=Reaumur)

6.〈外〉(=Rex; Regina)

7.(=radius)

8.(=ratio)

9.(=resistance)

10.(=retree)

11.(=roentgen)

12.(=range)

13.(=registered)

14.(=rifle)

15.(=regulating)

16.英语字母表第十八字母

17.R 字形(之物)

18.中世纪罗马数字的80

19.〈美〉(电影)需成年人带领入场〔17岁以下青少年不能单独观看〕,R 级

1.(=refrigerator)

2.(=rod)

3.[Medical & Healthcare](=recipe)

4.(=radical)

5.(=Reaumur)

6.(=Rex; Regina)

7.(=radius)

8.(=ratio)

9.(=resistance)

10.(=retree)

11.(=roentgen)

12.(=range)

13.(=registered)

14.(=rifle)

15.(=regulating)

1.the 18th letter of the English alphabet. R is a consonant.

1.restricted: used in the U.S. for saying that people under the age of 17 cannot go to a particular movie unless they go with an adult

2.are: used in e-mails and text messages