?供应不足

... 对健康构成潜在威胁 pose a threat to health 供应不足 be in short supply 化学污染物 chemical pollutant ...

?供给缺乏

... 对安康构成潜在要挟 pose a threat to health 供给缺乏 be in short supply 化学污染物 chemical pollutant ...

?供应缺乏

... a）指“供给；供应”等，其反义词为demand（需求）。 supply and demand 供与求 be in short supply 供应缺乏，供应不足 ...

?供应短缺

... be overly dependant/ reliant on… 对某事过度依赖的 be in short supply 供应短缺 widen the gap between… and… 加大两者之间的差距 ...