3 sentences

1. 他试了两下子就学会了。

   tā shì le liǎng​xià​zi jiù xué​huì le.

   He learned it after just a couple of tries.

   Source: Dong Chinese Dictionary

2. 别看他年轻，修车还真有两下子。

   bié kàn tā nián​qīng, xiū chē hái zhēn yǒu liǎng​xià​zi.

   Don't be fooled by his youth; he's actually quite skilled at fixing cars.

   Source: Dong Chinese Dictionary

3. 他翻来覆去就那两下子，大家都看腻了。

   tā fān​lái​fù​qù jiù nà liǎng​xià​zi, dà​jiā dōu kàn nì le.

   He only has those few tricks up his sleeve, and everyone is tired of seeing them.

   Source: Dong Chinese Dictionary