Strictly speaking, a tomato is a fruit, not a vegetable.是什么意思？

Strictly speaking, a tomato is a fruit, not a vegetable.

严格说来，西红柿是水果，不是蔬菜。

strictly

adv. 严格地，完全地；

例句
Now my role is strictly advisory.
现在我的角色仅限于顾问。

speaking

n. 说话，讲话，谈话，演讲；adj. 演讲的，富于表情的，（肖像）栩栩如生的，雄辩的；v. 讲，谈(speak的现在分词 )；

例句
The Prime Minister was speaking ahead of today's meeting.
首相在今天的会议开始之前作了发言。

tomato

n. 番茄，西红柿，[俚语] 美女；

例句
...spicy tomato sauce served over a bed of brown rice.
浇在一层糙米上的辣味番茄酱

is

vt.& vi. 是（be的三单形式；n. 存在；

例句
Bollinger 'RD' is a rare, highly prized wine.
博林格RD香槟是一种名贵的备受推崇的葡萄酒。

fruit

n. 成果，水果，果实，（大地的）产物；vi. 树或花草结果；vt. 使…结果实；

例句
...13 year-olds spending their pocket money on fruit machines in arcades.
将零花钱花在游戏机室中水果盘老虎机上的13岁的少年们

not

adv. 不，[用以表示否定、否认、拒绝、禁止等]不是，几乎不，未必，没有[用于否定后面的词或短语]；

例句
It became very clear that the incident was not just an aberration, it was not just a single incident.
事实已经很清楚，这件事不是偶发的，它并不是一起孤立的事件。

vegetable

n. 蔬菜，植物人；adj. 蔬菜的，植物的；

例句
On his right was a thriving vegetable garden and beyond it a small orchard of apple trees.
他右边是一个生机勃勃的菜园，菜园的另一边是一个小小的苹果园。