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
Oh, please come in.
噢 请进来。
Gee, don't be mad, dear, red looks good on you.
喏，亲爱的，别生气呀。红颜色对于你再合适不过了。
Had he worked harder, he would have gotten though the exams.
如果他努力了的话，他就会通过考试的。