piercing mouth parts

例句：

1. 1. Theneedle pierced through the fabric toreach the stitching.
   针穿透了布料，到达了缝线。
2. 2. Thebullet pierced hischest and he fell to theground.
   子弹穿透了他的胸膛，他倒在地上。
3. 3. The sharp edge of the knifepierced through the meat.
   刀尖锋利地穿透了肉。