6 sentences

1. 这颗卵子已经受精了。

   zhè kē luǎn​zǐ yǐ​jīng shòu​jīng le.

   The egg has been fertilized.

   Source: Dong Chinese Dictionary

2. 卵子通常在输卵管中受精。

   luǎn​zǐ tōng​cháng zài shū​luǎn​guǎn zhōng shòu​jīng.

   The egg is usually fertilized in the fallopian tube.

   Source: Dong Chinese Dictionary

3. 精子与卵子结合形成受精卵。

   jīng​zǐ yǔ luǎn​zǐ jié​hé xíng​chéng shòu​jīng​luǎn.

   The sperm and egg combine to form a fertilized egg.

   Source: Dong Chinese Dictionary

4. 受精卵是由精子和卵子结合而成的。

   shòu​jīng​luǎn shì yóu jīng​zǐ hé luǎn​zǐ jié​hé ér chéng de.

   A fertilized egg is formed by the union of sperm and ovum.

   Source: Dong Chinese Dictionary

5. 他由于生病，一侧的卵子出现了明显的肿胀。

   tā yóu​yú shēng​bìng, yī cè de luǎn​zi chū​xiàn le míng​xiǎn de zhǒng​zhàng.

   Due to illness, one of his testicles showed noticeable swelling.

   Source: Dong Chinese Dictionary

6. 他在这次意外中受了伤，导致卵子部位肿得很厉害。

   tā zài zhè cì yì​wài zhōng shòu le shāng, dǎo​zhì luǎn​zi bù​wèi zhǒng de hěn lì​hai.

   He was injured in the accident, which caused severe swelling in his testicular area.

   Source: Dong Chinese Dictionary