1.shown off 炫耀；卖弄

例句:The bear was shown off at the International Robot Show in Japan.
这款机器熊已经在日本国际机器人展上亮相。

2.for instance 例如

例句:They will be concerned to do the right thing — to dress properly, for instance.
他们需要注意行为是否恰当——例如，穿着得体。

3.fingerprint readers 指纹识别

例句:Fingerprint readers offer greater security, because it is almost impossible to fake a human digit.
指纹辨识器比较安全，因为真人的手指几乎不可能伪造。

4.cook up 虚构；伪造

例句:He must have cooked up his scheme on the spur of the moment.
他肯定是一时冲动策划了这个阴谋。