amniotic sac的音標為[?m?"??t?k s?k]，基本翻譯為“羊膜囊”，速記技巧為“羊膜囊（amniotic）是囊（sac）狀的”。

Amniotic sac的英文詞源：

Amniotic sac這個詞源自希臘語，其中amnio- 是前綴 amnosi- (羊膜的)的縮寫，而- sac 是名詞后綴，表示“袋”或“囊”。

變化形式：

1. 復數形式：sacds。

2. 過去式和過去分詞：sacded 或 sacded。

3. 現在分詞：sacding。

相關單詞：

1. amnion (羊膜)：羊膜是羊膜囊的內部組織，與其外層不同。

2. amniote (羊膜動物)：所有生活在羊膜囊中的動物，包括哺乳動物、爬行動物和鳥類。

3. amnionly (羊膜的；僅限于羊膜的)：用來形容某物僅限于羊膜環境中。

4. amnionian (羊膜的；來自羊膜的)：用來形容某物與羊膜有關或類似于羊膜。

5. amniotic (羊膜的)：形容詞和名詞，表示與羊膜囊相關的。

6. sacculated (有囊的)：這個詞通常用來描述具有囊狀結構的物體或組織。

7. sacculation (囊狀結構)：名詞，表示囊狀結構或具有囊狀結構的過程。

8. sacculiferous (有囊的；囊狀的)：用來形容某物具有囊狀結構或類似于囊狀結構。

9. sacculin (囊狀的)：名詞，表示囊狀物或與囊狀物相關的物質。

10. sacculinous (有囊的；囊狀的)：形容詞，用來形容某物具有囊狀結構或類似于囊狀結構。

常用短語：

1. amniotic sac rupture 羊膜腔破裂

2. amniotic sac infection 羊膜腔感染

3. amniotic sac rupture and infection 羊膜腔破裂和感染

4. amniotic sac rupture during pregnancy 妊娠期羊膜腔破裂

5. amniotic sac rupture and delivery 羊膜腔破裂和分娩

6. amniotic sac rupture and pregnancy loss 羊膜腔破裂和妊娠丟失

7. amniotic sac rupture and preterm labor 羊膜腔破裂和早產

雙語例句：

1. The fetus is born with a small head because the amniotic sac ruptured during pregnancy.

2. The mother is experiencing severe pain because the amniotic sac ruptured during labor.

3. The doctor has to perform an emergency surgery to repair the ruptured amniotic sac.

4. The baby is now crying because the amniotic sac was intact until it was born.

5. The mother is now experiencing preterm labor because of the ruptured amniotic sac.

6. The baby is now crying because it was born with a small head due to the ruptured amniotic sac.

7. The mother is now in recovery after having her amniotic sac repaired.

英文小作文：

The Amniotic Sac and Its Roles in Pregnancy

The amniotic sac, a protective membrane containing the fetus and amniotic fluid, plays a crucial role in pregnancy. It provides the fetus with nourishment and protection as it grows and develops within the womb. The sac also cushions the fetus from pressure and prevents it from coming into contact with the mother"s organs, reducing the risk of injury. However, if the sac ruptures, it can lead to a number of complications, including premature labor, infection, and fetal distress. Understanding the role of the amniotic sac and its interactions with the mother and fetus is essential for ensuring a safe and healthy pregnancy for both mother and baby.