have a one-track mind
- 网络单打一；死脑筋；一根筋
have a one-track mindhave a one-track mind
单打一
"单"字的意思_百度知道 ... 单打[ singles] 单打一[ have a one-track mind] 单丁[ young man without brothers] ...
死脑筋
... · have a good mind to do something 很想去干某事 · have a one-track mind 死脑筋，一根筋 · be of two minds 拿不定主意 ...
一根筋
... · have a good mind to do something 很想去干某事 · have a one-track mind 死脑筋，一根筋 · be of two minds 拿不定主意 ...