transom bolt

例句：

1. 1.The window was securely fastened with a transom bolt.
   窗户用一个窗框螺栓牢固地固定住了。
2. 2. He carefully tightened the transom bolt to ensure the window stayed open.
   他小心翼翼地拧紧了窗框螺栓，确保窗户保持开启状态。
3. 3.The homeowner replaced the old transom bolts with new ones for better security.
   这位房主更换了旧的窗框螺栓，以获得更好的安全性。