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(单词翻译:双击或拖选)
a. The teacher is writing on the chalkboard
c. The classroom is empty
d. The students are eating lunch
点击收听单词发音
1 standing | |
n.持续,地位;adj.永久的,不动的,直立的,不流动的 | |
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1 standing | |
n.持续,地位;adj.永久的,不动的,直立的,不流动的 | |
参考例句: |
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