•Strike while the iron is hot (idiom) -
To do something immediately while there is still a good chance to do it. （打鐵趁熱）
1. This is the week to get plans off the ground. It's time to strike while the iron is hot.
2. He doesn't often make such offers -
I'd strike while the iron is hot if I were you.
•It's now or never (idiom) -
If you say 'It's now or never', you mean that something must be done immediately, because if it is not done immediately there will not be another chance to do it.（此刻或永不，機不可失）
1. It's now or never, so make up your mind.
2. If you're interested in seeing the island before it's overrun with tourists, it's now or never.
•End up (phrasal verb) -
To reach or come to a place, condition, or situation that was not planned or expected.（以…告終，結果…是）
1. After working her way around the world, she ended up teaching English as a foreign language.
2. The book ended up in the trash.
•Have / keep an open mind (idiom) -
To be willing to listen to other people's opinions about someone or something.（持開放態度，願聽取意見）
1. Before he resolves a problem, he keeps an open mind on how that problem might be resolved.
2. I told the committee that I had an open mind on the matter.
•It's dogged as/that does it (idiom) -
It is doing anything with determination, hard-work and perseverance that brings success.（不懈才能成功）
1. It's dogged as does it. It's not thinking about it.
2. Well, keep going - it's dogged that does it!