1.cool one's heels 久等
Do not make your guests cool their heels when you have appointments with them.
同客人訂了約會(huì)就不要讓人家久等nlftpo@k6!y。

2.worst of all 最糟糕的是
And worst of all, his wife was from a good family, her father was one of the pillars of the exchange market and his revenge would be great.
最糟糕的是，他的妻子是名門出身的大家閨秀，她父親是交易市場(chǎng)的棟梁人物，倘若興師問罪起來，那可了不得+3ctIBxa-_~。

3.be done doing sth. 結(jié)束；不再；……夠了
We were done waiting for you.
我們等你已經(jīng)等夠了EU)a4]nrcD。

4.be open to (doing) sth. 對(duì)……持開放態(tài)度
You should really try to be more open to suggestions if you want to create the best product possible.
要想做出最好的產(chǎn)品，你就應(yīng)該試著廣納建言C!DW*lb.edbIWM|&H。