HSK 7-9
后台
hòutái名
backstage area; behind-the-scenes supporter; (computing) back-end; background
导演在后台安慰紧张演员。
Dǎo yǎn zài hòu tái ān wèi jǐn zhāng yǎn yuán.
The director comforted a nervous actor backstage.
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Appears across levels (7-9) in the HSK 3.0 word list.