🧩 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
That a boy.
对了。
That would be the responsibility of the buyer. We are prepared, however, to provide all the documentation costs.
那是属于买方的责任，我们仅承担提供所有文件的费用。
The one in the white car.
在那辆白色车里的人。