当物品供应缺乏时按定量配给市民的英文

ration citizens when supplies are scarce

• 当:    proper; right
• 物品:    article; goods
• 供应:    supply; accommdate
• 缺乏:    be short of; lack; ...
• 时:    shí]
• 按:    press; push down
• 定量:    quantify; norm; ra ...
• 配给:    ration; allotment; ...
• 市民:    residents of a cit ...