这枚新版1英镑硬币加入了一些特殊的安全特性。除采用双色十二边形的设计之外，新硬币表面刻有极小的文字，其底部印有类似全息图的英镑符号，硬币内还设置了特殊的安全技术，这意味着市面上的投币式贩卖机将能够识别其真伪，确保这一点十分重要，因为旧版1英镑的伪币实在太多了。

词汇 triggered

触发了，启动了

unpick

深入地剖析

hologram

全息图（效果）

练习 请从以下词汇中选择适当的答案来完成句子。注意：你可能需要改变单词的时态来完成句子。

triggered / unpick / hologram

1. The melting of the glacier was __________ by the climate warming more than fifty years ago.

2. The rock singer, who died a few years ago, will become the first star to return to the stage via __________ at a new concert show launching this year.

3. Now that the organisation has closed we've got to __________ all the agreements we had made with our clients.

答案 1. The melting of the glacier was triggered by the climate warming more than fifty years ago. 

2. The rock singer, who died a few years ago, will become the first star to return to the stage via hologram at a new concert show launching this year.

3. Now that the organisation has closed we've got to unpick all the agreements we had made with our clients.

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