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Sentence examples
把信放进信封
bǎ xìn fàngjìn xìnfēng
to put a letter in an envelope
打开信封
dǎkāi xìnfēng
to open envelope
在信封上贴上邮票
zài xìnfēng shàngtiē shàng yóupiào
to stick the stamp on the envelope
在信封上写下自己的地址
zài xìnfēng shàng xiěxià zìjǐ de dìzhǐ
to write one's address on the envelope
