Ntsb
abbr. National Transportation Safety Board <美>全国运输安全委员会
🗣️ 情景例句
I heard that some tours actually go down into the canyon. Is that true?
我听说有的旅游团真正下到峡谷里去了。那是真的吗？
I'm two years younger than my sister.
我比我姐小两岁。
'You certainly did give me a surprise!' said the vicar.
“你确实使我大吃了一惊！”牧师说，