单词：deuteroammonium
音标：[dju:tәrәu,ә'mәuniәm] ；
含氘氨(基)
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In business, Optus has called for Telstra's proposals on its participation in the national broadband network to be blocked. Optus' chief executive Paul O'Sullivan says Telstra's current plan for the separation of its retail and wholesale arms wholesa
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