trackball是什么意思_trackball的用法_翻译_读音

- n. 〈计算机〉（用来控制光标的）追踪球
英英释义
Noun:

an electronic device consisting of a rotatable ball in a housing; used to position the cursor and move images on a computer screen;
"a trackball is essentially an upside-down mouse"
临近单词

tracker track Track initial track vehicle track telling track bearing track carrier track joining track renewal track tractor track control tracking ship