4周搞定2000+托福核心词
biodegradable = bio(生物) + de(向下) + grad(级别) + able(能…的) = 生物上可以向下降级的→可生物降解的
decline = de(向下) + clin(倾斜) + e(名词后缀) = 向下倾斜→减少；下降
向下攀→下降
descent
常考释义
Almost all previous travellers had left the river at Ollantaytambo and taken a high pass across the mountains to rejoin the river lower down, thereby cutting a substantial corner, but also therefore never passing through the area around Machu Picchu.16C On 24 July they were a few days into their descent of the valley.
Almost all previous travellers had left the river at Ollantaytambo and taken a high pass across the mountains to rejoin the river lower down, thereby cutting a substantial corner, but also therefore never passing through the area around Machu Picchu.16C On 24 July they were a few days into their descent of the valley.
来源于：剑雅12-TEST6n. 下降
The plane began its descent to Heathrow.
飞机开始向希思罗机场降落。
We are beginning our descent into Los Angeles.
飞机要开始向洛杉矶机场降落了。
来自《大梦想家》
图片源自网络
n. 斜坡；坡道
There is a gradual descent to the sea.
有一片斜坡缓缓伸延到海边。
n. 血统；祖籍；祖先；出身
He traces his line of descent from the Stuart kings.
他的家族可追溯到斯图亚特王朝。
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