Presence bit
[計] 存在位
?? 詞語組成解析
bit
[b?t]
n. 一點，一塊;少量，少許;一會兒，一轉(zhuǎn)眼;[計] 比特（二進位制信息單位）;
adj. 很小的，微不足道的;
adv. [口語]相當，有點兒，或多或少，多少[a bit to的省略];
vt. 給（馬）上嚼子;上銜鐵;抑制;制約;
v. 咬，叮( bite的過去式);刺痛;咬餌;有咬（或叮）的習性;
??? 情景例句
Don't bother me.
別惹我。
She insists that it doesn't make any difference to her.
她堅持對她沒有任何差別。
Then she touched me lightly on my arm and made me burst into laughter.
然后她輕輕地觸摸我的手臂，使我哈哈大笑。