通

tōng to go through; to know well; (suffix) expert; to connect; to communicate; open; to clear; classifier for letters, telegrams, phone calls etc

tòng classifier for an activity, taken in its entirety (tirade of abuse, stint of music playing, bout of drinking etc)

宝

bǎo jewel; gem; treasure; precious

bǎo variant of 寶|宝[bao3]

信用

xìn yòng to trust; credit (commerce); trustworthiness; creditworthiness

还款

huán kuǎn repayment; to pay back money

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