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来源:雅诚德英语网
Calcium builds strong bones, which are less likely to break under the stress and strain of heavy activity.
钙用于建立强壮的骨骼,使它不会在重压和剧烈活动时断裂。
Calcium builds strong bones, which are less likely to break under the stress and strain of heavy activity.
钙用于建立强壮的骨骼,使它不会在重压和剧烈活动时断裂。