我将对此使用什么查询

Relationship

Teacher   Student
1         1
1         2
2         1 
2         3

Students

Id    Date of birth   First Name
1     1990-10-10      Bill Smith
2     1989-01-03      Adam Smithson

$relationships = RelationshipQuery::create()->filterByTeacher($teacherid)->find();

foreach($relationships as $relationship){
  $studentId = $relationship->getStudent();

  //use the studentId to get the actual student object
  $student = StudentQuery::create()->findPk($studentId);

  //after I get the student, I add it to an array
  $students[] = $student;
}

$teacher = TeacherQuery::create()->findOneById($teacherId);
$students = $teacher->getStudents(); //Your students collection