n. beam used to support floors or roofs
n. 托梁, 桁
1. The carpenter installed a new joist to support the ceiling.
木匠安装了一根新的托梁来支撑天花板。
2. It's important to check the joists for damage before starting a renovation.
在开始装修之前，检查托梁是否有损坏是很重要的。
3. The floor felt uneven because one of the joists was broken.
地板感觉不平，因为其中一根托梁坏了。