Pyranopentose
吡喃戊糖
??? 情景例句
Then, take this afternoon off.
那么，今天下午就休息一下吧。
I told him to stay till he comes back.
我告訴他留下來等他回來。
I smoked with concentration and pleasure as I was sure that this would be my last cigarette.
我聚精會神而又愉快地吸著這枝煙。因為我確信這是我最后一枝煙了。