应该是し读shi,汉语谐音发[西] ち读chi,汉语谐音发[七] つ读tsu,汉语谐音发[粗][次]之间的音
し读shi,汉语谐音发[西] ち读chi,汉语谐音发[七] つ读tsu,汉语谐音发[吃]
し读shi,汉语发[西]ち读chi,汉语发[七]つ读tsu,汉语发[疵]一声
shi:xi chi:qi tsu:ci