new
track ball的英文翻譯是什麼意思，詞典釋義與在線翻譯：
英英釋義
名詞 trackball:
-
an electronic device consisting of a rotatable ball in a housing; used to position the cursor and move images on a computer screen
track ball的用法和樣例：
例句
- Input devices include keyboards and pointing devices such as mouse,joystick,track ball, or light pen.
輸入設備包括鍵盤和點擊設備如滑鼠，操縱桿，跟蹤球或光筆。
