Use from birth until baby is able to sit upright unassisted.

从出生婴儿的使用，直到能够坐在直立无辅助。

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Lincoln, finally able to sit upright, doesn't understand how his own death would stop his father.

Lincoln终于能够坐直了，他不明白他的死为何会制止他的父亲。

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Those affected are conscious, able to sit upright, can answer questions, and afterwards experience amnesia.

这些影响是有意识的，可以笔直站着，也能回答问题，但之后恍惚状态的记忆就消失了。

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The doctor asked him to sit upright for a while to make sure he felt okay.

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Once it circulated for 10 minutes, I was asked to sit upright inside a circular, open capsule for a Cardiac Computed Tomography (CT) scan.

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The more traditional method of measuring hearing loss, the distraction test, requires a baby to sit upright on the mother's lap, responding to sound without seeing the source, and therefore cannot be done before 8 months.

BBC: Babies' hearing problems undiagnosed