Do you know why he was mulling and hesitating?你知道他为什么前思后想、犹豫不决吗？She stood hesitating on the threshold.她站在门口，犹豫不决。He's still hesitating about joining the expedition.他对于参加这次探险队仍犹豫不决....
他工作极为投入，会从早上七点一刻一直干到晚上九十点。He works obsessively from 7.15 am to 9 or 10 at night.虽已年届九旬，她依然头脑敏锐，个性很强。Into her nineties, her thinking remained acute and her character forceful.我天真地以为这是份朝九晚五的工作。I thought, naively, that this...