1. concentrate to

全力以赴

eg. Practice this method, the spirit of concentrate to make itself felt in every corner of air into the body.

演习此法，要精力灌注，使本人感觉气流到体内的每个角落。

eg. Eventually, dairy men hope to improve the concentrate to such an extent that it can be kept for longer periods.

最终，奶制品商家希望改善浓缩奶到一定的程度，使它可以保质更长。

2. at first

起先，首先；最初

eg. Their research,at first, as nothing to with money.

他们的研究，在第一，因为没什么钱。

eg. She boggled at the suggestion at first,but finally agreed to do the job.

她起先对这个建议犹豫不定，但最后同意做这工作。

3. try to

试着；设法

eg. Try to mend this hole in my shirt.

请设法把我这个衬衫上的洞补好。

eg. Mary is very quiet,try to fetch out at the party.

玛丽非常腼腆，设法鼓励她在聚会上开口说话。