最佳答案：cluster记法:1/词根助记解析cl 聚集成块 -> 聚集成块 -> cluster 群2/联想clog v. 使阻塞 n. 木鞋clot n. 凝块；傻瓜 v. 凝结成块cloud
cluster记法:
1/词根助记
解析
cl 聚集成块 -> 聚集成块 -> cluster 群
2/联想
clog v. 使阻塞 n. 木鞋
clot n. 凝块；傻瓜 v. 凝结成块
cloud n. 云；云状物；忧郁 v. 使模糊；显得阴沉；混淆
3/例句
When the magnetic field is at its strongest, and sunspots at their most plentiful, they cluster close to the equator.
当磁场最强，太阳黑子最丰富的时候，它们会聚集在赤道附近。
