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
They were no longer a series of small bands but lived in a large community with more elaborate social organization, probably grouped into clans of people of common descent.
他们不再是一系列的小型部落而是住在一起的大社区，拥有更复杂的社会组织，很有可能是按照共同祖先划分的部族。
来源于：阅读OFFICIAL20 P2n. 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. 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。
They were no longer a series of small bands but lived in a large community with more elaborate social organization, probably grouped into clans of people of common descent.
他们不再是一系列的小型部落而是住在一起的大社区，拥有更复杂的社会组织，很有可能是按照共同祖先划分的部族。
来源于：阅读OFFICIAL20 P2n. 斜坡；坡道
There is a gradual descent to the sea.
有一片斜坡缓缓伸延到海边。
[dɪˈsɛnt]
基本释义 n. 下降
常考释义 n. 下降；血统；祖籍
The plane began its descent to Heathrow.
飞机开始向希思罗机场降落。
descending
descender
biodegradable adj. 可生物降解的
bio生命+de向下+grad级别+able可以… =生物上可以向下降级的→可生物降解的
decline n. 下降；减少
de向下+clin倾斜+e =向下倾斜→减少；下降
deduce v. 推论
de向下+duce引进去 =向下拉引→推论
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