cloud可數(shù)嗎

　　例句：

　　1、a cloud of chaff, for decoying radar-guided missiles

　　迷惑雷達(dá)制導(dǎo)導(dǎo)彈的干擾云

　　2、The scandals still cloud MCI's reputation.

　　這則丑聞仍然損害著微波通信公司的聲譽(yù)。

　　3、The night was dark, the stars hidden behind cloud.

　　那個(gè)夜晚很黑，星星躲在云后面。

　　4、Another cloud of witnesses compasses me about.

　　又一群目擊者把我圍了起來。

　　5、The American edition of `Cloud Street' is already in its third printing.

　　美國(guó)版《云街》已是第三次印刷了。