She is not too tall or too short.

她既不是很高也不是很矮。

youdao

She is not too tall, but very thin.

她个子不太高，但是很瘦。

youdao

She is thirteen years old. She is not short, but is not too tall.

她今年十三岁了，她的个子不高也不矮。

youdao

For the purposes of floating wind farms, such turbines are not light enough, they are too tall and the rotor blades are too small, according to Mr Bratland's early assessments, made even before the 2.3 megawatt turbine has started delivering electricity through the sea-bed cable that connects it to the Norwegian national grid.

BBC: Floating challenge for offshore wind turbine