动词短语
中文翻译：Unknown
同义词：
['sidewalk parking', 'sidewalk loading', 'sidewalk unloading']
例句：
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1. The truck was parked on the sidewalk while it was being loaded.
卡车停在人行道上，正在装载。
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2.The delivery man was loading groceries onto the side of the sidewalk.
送货员正把杂货放在人行道上。
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3.The construction workers were loading materials onto the sidewalk.
建筑工人正在将材料堆放在人行道上。