Embryo sac
胚囊
?? 詞語(yǔ)組成解析
sac
[s?k]
n. （動(dòng)植物組織中的）囊，液囊;
abbr. 縮寫 = (US) Strategic Air Command 戰(zhàn)略空軍司令部。;
??? 情景例句
Could I?
我能看一看嗎？
This is a very bad performance.
這是一次非常糟糕的演出。
But it is also used very widely as a foreign language in many other countries in the world.
然而在世界上其他許多的國(guó)家英語(yǔ)也被當(dāng)作一門外語(yǔ)廣泛地使用。