cloud可數嗎

　　例句：

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

　　迷惑雷達制導導彈的干擾云

　　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。

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

　　那個夜晚很黑，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.

　　美國版《云街》已是第三次印刷了。