🧩 词语组成解析
a. 种系发生的, 系统发育的\\n[医] 种系发生的, 种族发育的
🗣️ 情景例句
at the end of the semester.
就在这个学期结束的时候。
Two is company, but three is none.
两人成为伴，三人不结侣。
I had nearly reached the town, when the young man suddenly said, very slowly, Do you speak English?'
“你会讲英语吗？”