严格保证

【法】 strict guaraty

严格的英语翻译：

strictness; severity; exactitude; grimness; rigour; sternness; stringency
【法】 rigou; stringency

保证的英语翻译：

guarantee; assure; certify; warrant; ensure; pledge; secure; assurance
guaranty; surety; warranty
【经】 assurance; endorsement; guarantee; guaranty; recognizance; scure
secure; security; surely