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joint surety; surety jointly and severally liable; co-maker; co-endorser; co-signer
連帯保証人を頼まれて困った。
I was troubled when asked to be a guarantor.
連帯保証人になるのは危険だ。
Becoming a guarantor is dangerous.
連帯保証人の責任は重い。
A guarantor's responsibility is heavy.