be up to trap

基本解释

It is easy to fall into the trap of thinking that all time have to be booked up for some activity.
我们很容易陷入一个误区：认为所有的时间都应该安排一些活动。
This will likewise be true of the coastline from what is now Japan up to Kamchatka, where a trap will exist.
对于现在日本到堪察加半岛的海岸线，情况也是如此，那里将会存在一个“陷阱”。
A spider has to pick up a living somehow or other, and I happen to be a trapper. I just naturally build a web and trap flies and other insects.
我们总要选择一种这样或那样的方式生存下去，而我正好选择了这种，我只是自然而然的编织了一张网，用它来网住那些苍蝇和其他的一些小昆虫。
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