"напрячься" meaning in 俄语

{
  "lang": "俄语",
  "lang_code": "ru",
  "pos": "unknown",
  "senses": [
    {
      "glosses": [
        "(不用一、二人称)绷紧；紧张起来"
      ],
      "id": "zh-напрячься-ru-unknown-gOsR0s5L"
    },
    {
      "glosses": [
        "使大劲，用全力"
      ],
      "id": "zh-напрячься-ru-unknown-ZcGzcDGx"
    },
    {
      "glosses": [
        "(不用一、二人称)不自然，强作"
      ],
      "id": "zh-напрячься-ru-unknown-OFjlgFjo"
    },
    {
      "glosses": [
        "(不用一、二人称)(力气等)鼓起；(注意力等)集中."
      ],
      "id": "zh-напрячься-ru-unknown-rVO45ioj"
    }
  ],
  "word": "напрячься"
}

{
  "lang": "俄语",
  "lang_code": "ru",
  "pos": "unknown",
  "senses": [
    {
      "glosses": [
        "(不用一、二人称)绷紧；紧张起来"
      ]
    },
    {
      "glosses": [
        "使大劲，用全力"
      ]
    },
    {
      "glosses": [
        "(不用一、二人称)不自然，强作"
      ]
    },
    {
      "glosses": [
        "(不用一、二人称)(力气等)鼓起；(注意力等)集中."
      ]
    }
  ],
  "word": "напрячься"
}