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BNC: 17316 COCA: 13291

slow development, or development that is slower than it should be迟缓;阻滞;延迟

Severe iron deficiency can cause developmental delay and growth retardation.严重缺铁会导致发育迟缓。
BNC: 17316 COCA: 13291
BNC: 17316 COCA: 13291
BNC: 17316 COCA: 13291

See also: retard


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