He felt a tap on his shoulder and turned round.

　　他覺得有人輕輕拍他的肩膀便轉(zhuǎn)過身來。

　　Tell me when the tape starts recording.

　　磁帶開始錄時告訴我一聲。

　　Their group was targeted to carry the burden of job losses.

　　他們那個小組被選中成為裁員的目標(biāo)。

　　The teacher assigned a different task to each of the children.

　　老師給每個兒童布置的作業(yè)都不相同。

　　A computer can perform many tasks at once.

　　電腦能同時做多項工作。