頭部是胎兒最大的部分，分娩時囟門能讓胎兒的頭部縮小，便於從狹窄的產道通

頭部是胎兒最大的部分，分娩時囟門能讓胎兒的頭部縮小，便於從狹窄的產道通過。

結果 (英文) 1:

The head is the largest part of the fetus. The fontanelle can shrink the head of the fetus during delivery to facilitate passage through the narrow birth canal.

結果 (英文) 2:

The head is the largest part of the fetus, 囟 door during childbirth can make the fetus' head shrink, easy to pass through the narrow birth path.

結果 (英文) 3:

The head is the largest part of the fetus. During delivery, the fontanel can make the head of the fetus smaller and pass through the narrow birth canal.