Ducts
n. 通风管道；管道（duct的复数）
🗣️ 情景例句
It's about my grandfather.
是关于我爷爷。
It's a shame these instructions are so complicated.
真遗憾，这些说明太复杂了。
Hi, Li Lei! Nice to see you again!
你好，李磊！又见到你了，真高兴！