一个表达，不止一种意思。

事先；提前；提前；预先；提前

Please reserve a seat ahead of time, as the workshop has room for only twenty participants.

突然；一下子；突然；忽然间；突然；忽然

All of a sudden, the pressure dropped, and the crew shut down the pump before the pipe burst.

到处；散乱不堪；到处都是；杂乱无章

The receipts are all over the place; let's sort them by month.

终于；终于；最终

After weeks of repairs, the mountain road was open at last.

处于风险中；关系重大；处于风险中；得失攸关

With the final grant at stake, the team checked every figure before sending the proposal.

黑白分明的；简单明确的；黑白分明的；非此即彼的

The contract issue is not as black and white as the summary makes it sound.

顺便说一下；对了；顺便说一句；另外；顺便说一句；用于补充相关信息

By the way, the neighborhood library closes an hour earlier on Sundays.

派上用场；有用；派上用场；正好有用

If you should have a pair of binoculars, they will come in handy here: take a close look at the fine craftsmanship in this work of art.

时不时；偶尔；偶尔；时不时

Every now and then, the library hosts a repair clinic where neighbors fix lamps and small appliances.

爱上；坠入爱河；坠入爱河；爱上

They fell in love with the little seaside town during their first visit.

这一次；难得一次；难得；这一次；难得一次；这一次

For once, the entire crew arrived early, and we had time to eat breakfast together.

饶了我吧；别再为难我了；饶了我吧；别再烦我；给我点时间

Give me a break; I only just got home, and you're already asking me to leave.

蒙在鼓里；对情况一无所知；不知情；蒙在鼓里

The organizer kept volunteers in the dark about the venue change until the new hall was confirmed.

留意；密切关注；照看；留意；留意；照看；密切关注

Regional instability on some other continent may be something to keep an eye on.

根本没有办法；绝不可能；不可能；绝不；根本不可能；没有办法

There is no way I'm taking that narrow road after the freezing rain.

绝不可能；没门；绝无可能；毫无机会

When the landlord asked us to move out by tomorrow, we said there was not a chance we could pack that quickly.

由店家免费招待；免费赠送；由店家免费提供；免费赠送

The café gave us dessert on the house because our order arrived late.

处于危险中；岌岌可危；处于危险或成败关头；岌岌可危；处于危险中；受到威胁

With the final inspection approaching, the opening date is on the line if the fire doors fail again.

意见一致；对情况有相同理解；想法一致；达成共识

Before we send the proposal, let's make sure the design and finance teams are on the same page about the launch date.

失去控制；变得过火；失控；变得难以处理；失去控制；难以应付

"Those Buchanan family reunions are getting a little out of hand."

突然；不知从哪里冒出来；突然出现；毫无来由地冒出来；突然；出乎意料地

A dog ran out of nowhere and crossed the path, so the cyclist braked and waited for its owner.

小菜一碟；轻而易举的事；轻而易举的事；小菜一碟

The first repair looked complicated, but it was a piece of cake once we found the right screwdriver.

放轻松；别太劳累；慢慢来；放轻松；小心点（视语境而定）；放轻松；别着急

The doctor told him to take it easy for a few days after the ankle sprain.

反过来；倒过来；反过来；恰恰相反

I thought you were picking me up, but I had it the other way around; you're already at the station.

当然；没问题（用于肯定回应）；当然；没问题

Could you watch the front desk for five minutes? You bet—I'll stay right here.