Children will be admitted to the concert, but sorry, no babes in arms.
(babes in arms means a baby being carried)
（babes in arms指怀抱的婴儿）
The poor baby has a face only a mother could love.
(a face only a mother could love is a very ugly face)
（a face only a mother could love指长相丑陋）
Just enter the update code, register the new software, and Bob's your uncle.
(Bob's your uncle means you're almost finished)
（Bob's your uncle指差不多做完了）
When you go on a trip, it's important to buy souvenirs for your kith and kin back home.
(kith and kin means family)
（kith and kin指亲朋好友）
Just watch. Getting her to go out with me will be like taking candy from a baby.
(like taking candy from a baby means very easy)
（like taking candy from a baby指轻易地）