php - how to fetch respose data by retrofit with multiple parameters By GET Request in Jetpack compose

In these days i am building An english learning app for beginners so i have problem, i want to fetch response data with two parameters (level and unit) from database as shown in php code by retrofit Like this,

https://adeega.xisaabso.online/Api/Article_vocabulary.php?Level=1&Unit=1

so how can i do it? I need help to do that? Here is my Code Below

Vocabulary_Api.kt

const val Vocabulary = "https://adeega.xisaabso.online/Api/"

interface getVocabularies {
   @GET("Article_vocabulary.php")
   fun getVocabularies(): Call<Vocabularies>
}

object getVocabulariesInstance {
   val getVocabulariesSections: getVocabularies

   init {
      val retrofit = Retrofit.Builder()
         .baseUrl(Vocabulary)
         .addConverterFactory(GsonConverterFactory.create())
         .build()
      getVocabulariesSections = retrofit.create(getVocabularies::class.java)
   }
}
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Vocabulary.kt

  val users = getVocabulariesInstance.getVocabulariesSections.getVocabularies()

  val data = remember { mutableStateOf(Vocabularies()) }
  users.enqueue(object: Callback<Vocabularies> {
     override fun onResponse(
        call: Call<Vocabularies>,
        response: Response<Vocabularies>
     ) {
        val userData = response.body()
        if(userData != null) {
           data.value = userData
        }
     }
     override fun onFailure(call: Call<Vocabularies>, t: Throwable) {
        Toast.makeText(context, t.toString(), Toast.LENGTH_SHORT).show()
     }
  })


  LazyColumn(
     contentPadding = PaddingValues(
        horizontal = 12.dp,
        /*vertical = 0.dp*/
     ),
     verticalArrangement = Arrangement.spacedBy(10.dp)
  ) {
     items(data.value) { item ->
        Cards_Vocabulary(data = item, navController)
        //Divider(color = Color.Gray, thickness = 1.dp)
     }
  } // END LazyColumn
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database.php

if(!empty($_GET['Level']) && !empty($_GET['Unit'])) {

    $Level = (int)$_GET['Level'];
    $Unit  = (int)$_GET['Unit'];


    $Article = $pdo->prepare("SELECT * FROM App_vocabularies 
                                WHERE LevelID = ? AND UnitID = ?");
    $Article->bindParam(1, $Level);
    $Article->bindParam(2, $Unit);
    $Article->execute();
    $Article = $Article->fetchAll(PDO::FETCH_OBJ);
        echo json_encode($Article);

}
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