並前往https://books.google.com.tw/books?id=SJvJDwAAQBAJ&pg=PT1&lpg=PT1&dq=top+tier&source=bl&ots=IPGkFLiYXK&sig=ACfU3U3AMtMWVfP4kCm5CmdICnY5q00D9g&hl=zh-TW&sa=X&ved=2ahUKEwjisM2g2bX0AhWOS2wGHbRZCsMQ6AF6BQiwAhAD