observation
B2高频 NGSL-2英 /ˌɒbzəˈveɪʃn/美 /ˌɑːbzərˈveɪʃn/
释义
noun
观察
the act of watching somebody/something carefully for a period of time, especially to learn something
“Most information was collected by direct observation of the animals' behaviour.”
在真实视频里记住 observation
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