Ccah
abbr. clock cycle acknowledge handshaking 時鐘周期應答交控[信號交換]
??? 情景例句
I'd like to cash some traveller's checks here.
我想在這兒兌換一些旅行支票。
East or west, home is best.
在家千日好，出門時時難。
Now, this is the chemistry lab. Have you been in this lab before?
好啦，這是化學實驗室。你們以前到過這個實驗室嗎？