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
Is it all right if I use a letter of credit?
如果我使用信用证，没关系吧？
Would you like to go for a walk?
你想要去散步吗？
Even he still lives under the illusion that country life is somehow superior to town life.
即使他也仍存有幻觉，好像乡村生活就是比城市生活优越。