什么时候

say when───够的时候说一声

but then───不过；然而；但另一方面

by water───由海路，乘船；由水路

anywhen───任何时候

beechen───adj.山毛榉制的，山毛榉木材的

birchen───adj.桦树的，桦木制的

bitchen───好极的；妙极的

There were two witnesses who happened to be standing by when the accident happened.───事故发生的时候恰好有两名目击者在场。

What do you want to accomplish? By when?───你想要完成什么？在以前什么时候？

I was about to keep driving by when I saw a man dressed up in an old buckskin jacket and a large worn out hat.───我正打算一路开下去，这时见到路边有个人穿着件旧鹿皮夹克，头上戴着顶破帽子。

Li Dong happened to pass by when Li Ming splashed him with water and made him all wet.───李冬正好路过，李明把水溅在他身上，李明被弄得浑身湿透。

Effective goals must state how much of what kind of performance by when is to be accomplished and by whom.───有效的目标必须需阐明在什么时候由什么样的人做出什么程度的表现。

He said he had known Ms Letizia's father for years and dropped by when a gap arose in his schedule.───他说他认识莱蒂齐亚的父亲很多年，所以在他的时间表里减少了创立关系的时间。

Byand by when Brucephalus had become tired, Alexander reined him in and rode back to the place where his father was standing.───不久，比塞弗勒斯跑累了，亚历山大就骑着它，回到他父亲的地方。

Can you imagine how an hour flies by when everyone has one of these in a meeting? How focused and exhausting it would all be?───想象一个，如果每个人都有这样一个应用，一小时的会议会过得有多快？大家会多么集中精力，疲于应对？

There were several people standing by when the accident happened.

What do you go by when you're deciding whether or not to employ someone?

Hardly a day goes by when I don't think about her.

Ever had a carload of girls drive by when you’re jogging and scream at you approvingly? It makes you feel great doesn’t it?

The baby is due in May, by when the new house should be finished.

It provides attenuation of potential difference represented by when it is negligibly loaded.

I felt very hard done by when I got less money than anybody else, after I had worked twice as hard.

Scarcely a day goes by when I don't think of him.

introductions are hard to come by when your natural state is shyness. Steve Martin