retardation
US /ˌritɑrˈdeʃən/
・UK /ˌri:tɑ:'deɪʃn/
B2 中高級
n. (u.)不可數名詞遲延 ； 妨礙 ； 阻止
Low temperatures play a role in retardation of bacterial growth
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智商和智慧如何影響我們的生活（或不影響！）。 (How IQ and Intelligence Affect Our Life (or Not!))
11:10
- retardation, which means trouble living alone. 20 will have difficulty reading
遲鈍，這意味著難以獨自生活。20人會有閱讀困難
愛喝酒跟愛抽煙的人小心了！原來它們對大腦和身體有這些影響！ (What happens if You are An Alcohol and Tobacco Addict? - Effects on Brain and Body)
03:23
- If consumed during pregnancy, fetal abnormalities and miscarriages can occur such as reduced physical and mental development, mental retardation, birth defects.
如果在懷孕中攝取酒精，可能導致胎兒畸形、流產、生理和心理發展不完全、智力遲緩和先天缺陷。
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