Assure （向…保证）
She assured her friend that she would be ontime for the meeting despite the traffic.
她向朋友保证，尽管交通拥堵，她仍会准时参加会议。
Assurance （保证）
His assurance that the project would becompleted on schedule eased our concerns.
他保证项目会按时完成，这缓解了我们的担忧。
Ensure （确保/保证）
Please ensure all windows are closed beforeleaving the office.
离开办公室前请确保所有窗户都关闭。
Make sure （确保）
Make sure you double-check the data beforesubmitting the report.
提交报告前请务必仔细核对数据。
Guarantee （保证/担保）
The store guarantees that all products areauthentic and will refund if fake.
该店保证所有商品均为正品，若为假货可退款。
Pledge （保证/承诺）
The politician pledged to lower taxes ifelected president.
这位政客承诺若当选总统将降低税收。
See to it that...（确保...）
See to it that the emergency kit is fully stockedbefore the storm hits.
确保风暴来袭前急救包物资齐全。
Commit （oneself）to （承诺/致力于）
She committed herself to volunteering atthe animal shelter weekly.
她承诺每周去动物收容所做志愿者。
Commitment （长期）承诺
Their long-term commitment to reducingcarbon emissions has inspired global action.
他们对减少碳排放的长期承诺激励了全球行动。
Promise （许诺/诺言）
He made a promise to his daughter that he’dtake her to Disneyland on her birthday.
他向女儿许诺，生日时带她去迪士尼乐园。
Fulfill a promise （兑现诺言）
She fulfilled her promise to teach herniece how to play the piano.
她兑现了教侄女弹钢琴的诺言。
Make/keep/break a promise （许下/遵守/违背诺言）
He kept his promise to call his parentsevery Sunday, even when busy.
即使忙碌，他也遵守了每周日给父母打电话的诺言。
Give one’s word （保证）
I gave my word to the team that I’d finishthe presentation draft by noon.
我向团队保证中午前会完成演示稿初稿。
Keep one’s word （信守诺言）
A person who keeps their word is trusted byeveryone.
信守诺言的人会被所有人信赖。
Break one’s word （食言）
He broke his word by arriving two hourslate for the dinner party.
他食言了，聚餐迟到了两小时。
Cross my heart （发誓（非正式））
Cross my heart, I didn’t peek at your
answers during the test！
我发誓，考试时我没偷看你的答案！
Swear （发誓/宣誓）
The witness swore under oath that he sawthe suspect at the scene.
证人宣誓称他在案发现场看到了嫌疑人。
Vow （发誓/立誓）
They vowed to support each other throughthick and thin.
他们发誓同甘共苦，彼此扶持。
