The robot supply teacher was capable of catching students passing notes and copying homework as well as giving them a rather stern telling off.

这位机器人代课老师能抓住传纸条和抄作业的学生，也能相当严厉地教训他们。

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New and old designs were dropped from the stern of a trawler and towed across the seabed off the Isle of Man.

试验场地设在英国的曼恩岛海域，两个设计都被从拖船船尾放入海中，拖过海底。

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He has a stern face and he simply nods before shooting off into the gathering darkness.

他一脸严肃地点点头，开车驶入越来越浓的夜色中。

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But the rulers of Bahrain and Yemen get a stern ticking off when their security forces kill demonstrators, not bombs aimed at their homes.

BBC: Arab Spring headaches for Barack Obama

Stern broke SEIU off from the AFL-CIO two years ago and has come to epitomize the contemporary union boss.

FORBES: Magazine Article

Stern John came off the bench to head home Stan Lazaridis' cross.

BBC: Bruce blasts Todd