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замыкаться в себе stresses
gen.	retire into one's shell; withdraw into oneself; turn in on oneself (to become introverted КГА); self-isolate (Tamerlane); become unsociable; become withdrawn (Ремедиос_П); collapse in on oneself (Abysslooker); shrink; escape; retreat (AlinaZhukova)
Игорь Миг	shut off oneself from the world; retire into oneself; retreat into oneself; withdraw into one's shell; zone out
Makarov.	lapse into a cocoon of self-isolation
замыка́ться в себе
Gruzovik	shrink into oneself; become reserved

замыка́ться в себе: 1 phrase in 1 subject

General

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