76、to begin with 第一;第一
例句：To begin with, let's discuss the main points of the project.
第一，让大家讨论项目的主要素。
77、at / in / from the beginning 在开始的时候
例句：I was there at the beginning of the project and saw it grow from scratch.
我从项目刚开始就在那里，见证了它从无到有些过程。
78、at the beginning of 在……开始
例句：At the beginning of the year, she set herself some goals to achieve.
年初，她为自己设定了一些要达成的目的。
79、believe in sb / sth 信赖某人 / 相信某事物的存在
例句：I believe in her abilities and know she can achieve anything she sets her mind to.
我相信她的能力，了解只须她下定决心，就能达成什么事情。
80、believe it or not 信不信由你
例句：Believe it or not, I met my childhood hero last week.
信不信由你，但我上周遇见了我小时候的偶像。
81、at best 顶多;充其量
例句：At best, we can finish the project by the end of the month.
充其量，大家能在月底前完成这个项目。
82、do / try one's best 尽力而为
例句：She always does her best to help those who are in need.
她一直尽力帮助那些需要帮助的人。
83、it is / would be better to do sth 做某事是更好的
例句：It would be better to plan your time effectively to avoid last-minute rushes.
有效地规划你的时间以防止最后一刻的匆忙会更好。
84、had better 最好
例句：You had better not leave the window open at night. It's cold outside.
你最好不要晚上开着窗户，外面非常冷。
85、between ... and ... 在……和……之间
例句：The meeting will be held between 9 and 11 am.
会议将在上午9点到11点之间举行。
86、between you and me [口语]你我私下说说
例句：Between you and me, I don't think the boss likes the new idea.
私下说，我感觉老板不喜欢这个新想法。
87、in between 在中间
例句：There's a small park in between the two buildings.
这两栋大楼之间有一个小公园。
88、ride a bike / by bike 骑自行车
例句：I prefer to ride a bike to work instead of taking the bus.
我宁可骑自行车上班，而不是坐公交。
89、give birth to 生 ;产
例句：She gave birth to a healthy baby boy last week.
她上周生了一个健康的男宝宝。
90、a bit of 一点儿;稍微
例句：I had a bit of a headache, but it's gone now.
我有点头痛，但目前好了。
