The truck is characterized with high sucking efficiency, self-priming and self-draining.

具有抽吸效率搞、自吸、自排及直灌等特点。

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Sixty-five percent of those polled complained of having a self-obsessed friend, and 59 per-cent accused their closest acquaintances of being emotional 'vampires' - draining all their energy reserves.

调查中有65%的投票集中在抱怨自己有一个自私自利的朋友，另外59%则控诉他们的亲密好友像一个情感上的“吸血鬼”——应付这些朋友让他们精疲力竭。

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