only child
noun/ˌəʊnli ˈtʃaɪld/
/ˌəʊnli ˈtʃaɪld/
- a child who has no brothers or sisters
独生子（或女） - I'm an only child.
我是独生子。 - Only children often relate well to adults.
独生子女通常与成人相处融洽。 - It was a bit lonely being an only child.
独生子女有点寂寞。
- I'm an only child.