教室里太嘈杂了，老师不得不提高嗓门才能让学生听见他的声音。
It was so noisy in the classroom that the teacher had to raise his voice to make himself heard by the students.
教室里太嘈杂了，老师不得不提高嗓门才能让学生听见他的声音。
It was so noisy in the classroom that the teacher had to raise his voice to make himself heard by the students.
