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单词 tracking
释义
trackingtracking /ˈtrækɪŋ/ noun [uncountable] 1the system on a VCR that keeps the picture from a videotape clear on the screen2the system of putting students in groups or classes according to their abilities and needs3the system that keeps a vehicle’s wheels parallel with each other
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更新时间:2024/9/20 6:26:56