如何使用 "boondoggle" 造句

1. Our investment in water softeners was a boondoggle .
我们在水软化器上的投资打了水漂。
2. A boondoggle ? Have you been lying to us from the start ?
小事一桩?你是否从一开始就在撒谎?
3. You decided is this just a boondoggle ?
你决定这只是一个琐碎无意义?
4. In here we have some boondoggle key chains .
这里有一些手工钥匙链。
5. What happens when lyle realises that we sent him on a boondoggle ?
要是莱尔发现我们调虎离山怎么办?