1.crucially 关键地，至关重要地

Crucially, as they opened up their markets, they balanced market economy with sensible government direction.

至关重要的是，随着他们打开市场，他们用明智的政府指导来平衡市场经济o&[i;o5zWtHR。

2.a grain of rice 一粒米

The peasants could not bear wasting a grain of rice.

农民们是无法容忍浪费一粒大米的.n4k[&xR;nAQmf5P=。

3.in the meantime 与此同时

In the meantime, I believe that the U.S. is doing quite a bit of work in terms of raising fuel efficiency standards.

同时，我相信美国在提高燃料效率标准方面做了不少工作+!dcZBgeeKV^g。

4.remain to be seen 拭目以待，有待观察

Whether it will do us harm or good remain to be seen.

是对我们有害还是有益需要进一步观察9k|.8uQ5S8U-mZKi3。