- 自らの努力によって
- do one's endeavors: 全力を尽くす
- exert one's best endeavors: 最善｛さいぜん｝を尽くす、最善｛さいぜん｝の努力｛どりょく｝をする◆【類】use [make, exert] one's reasonable endeavors [efforts]（合理的な努力をする）Distributor shall use its best endeavors to publicize, advertise and market Products within Terr
- in all one's endeavors: あらゆる努力｛どりょく｝を払って
