最終更新日：2022/12/24
The sperm passes through an outer barrier called the zona pellucida and, all being well, fuses with the egg.
編集履歴（0）
The sperm passes through an outer barrier called the zona pellucida and, all being well, fuses with the egg.
DiQt（ディクト）
無料
★★★★★★★★★★
