The word "retard" is a transitive verb meaning to slow down or to impede, and can also be an intransitive verb or a noun.
“Retard”是一个及物动词，表示使减速、妨碍或阻止；也可以是不及物动词，表示减慢或受到阻滞；还可以是名词，指减速、阻滞或延迟。
| 单词 | retard |
|---|---|
| 音标 | [rɪˈtɑ:d] [rɪˈtɑ:rd] |
| 释义 | vt.["使减速，妨碍，阻止，推迟"] vi.["减慢，受到阻滞"] n.["减速，阻滞，延迟"] |
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