踌
chóu
used in 躊躇|踌躇[chou2 chu2]
他站在门口踌躇了很久，不知道该不该进去。
tā zhàn zài mén kǒu chóu chú le hěn jiǔ, bù zhī dào gāi bu gāi jìn qù。
he stood at the doorway hesitating for a long time, not knowing whether he should go in or not.
面对这个难题，她踌躇半天，始终没有做出决定。
miàn duì zhè ge nán tí, tā chóu chú bàn tiān, shǐ zhōng méi yǒu zuò chū jué dìng。
facing this difficult problem, she hesitated for a long time and still could not make a decision.