At 4, but I have to leave by 3:00 to get there on time.
四点,不过我三点必须离开,才能准时到那里。
There is none without a fault.
人孰无过。
Was the philosopher who refused to look through Galileo's telescope more culpable than those who alleged that the spiral nebulae observed with Lord Rosse's great telescope in the eighteen-forties were scratches left by the grinder?