Embryo sac
胚囊
🧩 词语组成解析
sac
[sæk]
n. （动植物组织中的）囊，液囊;
abbr. 缩写 = (US) Strategic Air Command 战略空军司令部。;
🗣️ 情景例句
I only buy used books.
我只买旧书。
Would you please have these clothes washed for me?
可以请你为我把这些衣服洗了？
Combining exercise with the diet may be the most effective way to lose weight.
运动与节食结合也许是减肥最有效的途径。