Vcna
VTAM通信網絡應用程序
??? 情景例句
To help scrub the building interior clean.
幫忙把建筑的內部擦洗干 。
Business may be troublesome,but idleness is pernicious.
事業雖擾人，懶惰害更大。
The sense of humour is mysteriously bound up with national characteristics.
幽默感與民族有著神秘莫測的聯系。