Rnt
abbr. residual nitrogern time 氮停留時間; roentgenologist 德國物理學家; roentgenology X光線學; X光科
??? 情景例句
I reckon that all rock songs are rubbish.
我覺得所有的搖滾樂都是垃圾。
By what time should I check in?
我該什么時間辦理登機手續呢？
There is a boat in the river.
小河里有一條船。