Your boob tube is on its last legs.

你的电视机快报销了。

Your boob tube is on its last legs .

你的电视机快报销了。

The poor old horse is on its last legs.

那匹可怜的老马已经奄奄一息。

Matt Hasselbeck's career may be on its last legs.

马特·哈塞尔贝克的职业生涯可能因此奄奄一息。

My car is on its last legs-it keeps breaking down.

我的车快不行了――总是出毛病。