Pre-embryo
n. （胎儿的）胚前期
🧩 词语组成解析
abbr. 炼油工程师（Petroleum Refining Engineer）
🗣️ 情景例句
He visited with Grandma and me in Florida
他到Florida看过祖母和我
Do you usually do arithmetic on Sunday?
你通常在星期日做算术吗？
In that case, we can offer you a discount.
这样的话，可以给你折扣。