1.signal n.信號，暗號

That signal may prompt greater wariness from neighbors.
這個信號可能會讓鄰國更加戒備。

Red appears to signal rank in virtually all cultures.
紅色在幾乎所有的文化中都有著等級的標志。

2.harmonious 和諧的，融洽的；協調的

It wants to keep syria secular and religiously harmonious.
他們是想讓敘利亞社會、宗教兩和諧。

This will re-establish their faith in the harmonious world we're trying to build for our children.
他們會因此重建對這個和諧的世界的信心，這也正是我們努力為孩子營造的和諧世界。

3.outburst 爆發；破裂

See every opportunity for an outburst as a test.
把每次要爆發的機會看作是一個測試。

The outburst of pro-beijing sentiment among overseas chinese has been dominated by students, many of whom are living abroad only for a short time.
在海外華人中迸發的、支持中國政府的情緒，主要是集中在留學生當中，其中很多人只在海外生活了較短的時間。

4.shaky 搖晃的；虛弱的；不可靠的

For many, self-esteem is shaky at best.
往好了說，很多人的自尊心是不可靠的。

The shaky finances of some municipalities could put what's left of the industry to another huge test.
一些市政府不穩固的財務狀況可能使這個行業剩下的公司面臨另一個巨大的考驗。