🧩 词语组成解析
river
['rivə]
n. 河，江;溪，巨流;
red
[red]
adj. 红色的;（脸）涨红的;烧红的;红头发的;
n. 红色;红衣服;红颜料;红葡萄酒;
gum
[ɡʌm]
n. 口香糖;树胶;黏胶;牙龈;
vt.& vi. 胶合;涂以树胶;使…有粘性;
🗣️ 情景例句
and leave the number with the baby-sitter.
把餐厅的电话告诉临时保姆。
My parents got married in 1
我父母1954年结婚的。
Two factors weigh heavily against the effectiveness of scientific research in industry.
两个因素严重地影响工业里科学研究的效果：