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单词
check up on
释义
checks up on是check up on的第三人称单数
check up on
美
英
na.
“check on”的变体
第三人称单数：
checks up on
现在分词：
checking up on
过去式：
checked up on
英汉
英英
na.
1.
“check on”的变体
na.
1.
The
variant
of
check
on
2.
to
find
out
information
about
someone
,
especially
secretly
例句
释义:
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propagation loss
propagation material
propagation medium
propagation mode
propagation notice
propagation of an exception
propagation of detonation
propagation of disease
propagation of dislocations
propagation of disturbance
propagation of error
propagation of errors
propagation of explosion
propagation of extremely low frequency radio wave
propagation of flame
propagation of ground wave
propagation of heat
propagation of high frequency radio wave
propagation of light
propagation of low frequency radio wave
propagation of medium frequency radio wave
propagation of microwave
propagation of neutron wave
propagation of pressure
propagation of random errors
英汉双解词典包含2704715条英汉词条，基本涵盖了全部常用单词的翻译及用法，是英语学习的有利工具。
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更新时间：2026/10/10 14:14:19