abbr.prefix 前缀（计算机字符）,(Latin prefix=before) （拉丁语前缀）在…之前,precursor 前体细胞,partial reinforcement effect 局部加强作用
The subject came up during a pre-dinner drink with our guests.
在与客人喝餐前酒的时候，有人提到了这个话题。
Children graduate to the kindergarten, then pre-school, and then school.
孩子们先上幼儿园，然后上学前班，再接着上小学。
Most pre-prepared weight loss products are next to useless.
大多数预制减肥产品几乎都没有什么功效。