Pre-exist
(=preexist) vi.vt.先存在, 先于...而存在
📖 牛津释义
pre-exist
v[I]
(a) exist beforehand 先存; 先在.
(b) live a life before this life 生存於前世.
🧩 词语组成解析
abbr. 炼油工程师（Petroleum Refining Engineer）
🗣️ 情景例句
Four o'clock at the advanced exercise class. With me.
四点钟去高级健身课， 跟我一起。
Had so much fun
玩得开心
We need to find one about 30 centimetres(cm) by 30 cm by 50 cm.
我们需要找一只尺寸大约为30（厘米）X 30（厘米）X 50（厘米）的水箱。