是天使养活他，还是地狱里他的同类养活他，我也说不上来；可是他有近一个星期没跟我们一起吃饭了。
Whether the angels have fed him, or his kin beneath, I cannot tell; but he has not eaten a meal with us for nearly a week.
为什么他上课迟到，我也说不上来。
他说：当我们的上司在车祸中身亡以后，我们的第二把手不得不上来接替他的主管工作。令人高兴的是他做得很好，到目前为止一切业务运转正常。
2: When our boss died in an auto accident, our number two had to step up to the plate and take over. And I'm glad to say so far he's doing a great job; things run very smoothly.
这些问题他一个也回答不上来。
他是一本健美书，而他做的事，你就是说不上来。
He's a muscular book, and what he does, you just can't tell.
我问他为什么迟到时，他答不上来。
He couldn't come up with an answer when I asked him why he was late.
你若问一个普通的英语源流新加坡华人，他的曾祖父母和他们兄弟姐妹的姓名是什么，相信他会答不上来。
If one asks the average English-educated Chinese Singaporean to name his great-grandparents and their siblings, it is probable that he would be unable to do so.
他太胖了骑不上来，小男孩帮助他。
他的名字我一时说不上来。
我说不上来——我不了解他在女性美方面的好恶。
I could not tell — I did not know his taste in female beauty.
在这间隙，天性与情理之间究竟如何搏斗着，我说不上来，他的眼睛闪着奇异的光芒，奇怪的阴影掠过他的面孔。
What struggle there was in him between Nature and Grace in this interval, I cannot tell: only singular gleams scintillated in his eyes, and strange shadows passed over his face.
“我说不上来，”他说出声来。“我从来没有长过。”
“我说不上来，”他说出声来。
我恐怕说不上来他有当律师的资历。
我恐怕说不上来他有当律师的资历。
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