🧩 词语组成解析
abbr. 研究与开发处（Office for Research and Development）；运筹学部（Operational Research Division0；旋光色散谱, 旋光分散作用（Optical Rotatory Dispersion）
kangaroo
[,kæŋɡə'ru]
n. [动]袋鼠;
rat
[ræt]
n. 大老鼠;似鼠动物;<非正式>鼠辈，卑鄙小人;
vi. 捕鼠;<俚>背叛，告密;
🗣️ 情景例句
What does she think?
她怎么想呢？
Please don't let the dog come in the house.
请别让狗进到屋子里。
One of Mary's prize possessions was a little white lamb which her husband had given her.
玛丽最珍贵的财产之一就是丈夫送给她的一只白色小羔羊。