be positive

基本解释

"All of the evidence suggests we have reasons to be positive, " he said.
“所有的证据表明，我们是有理由如此肯定的，”他说。
The sentiments towards the Irish and by the Irish seem to be positive, overall.
总体来说，来自和对于爱尔兰人的情绪似乎都是积极正面的。
Explain to her that if she can’t be positive or respectful, then you can’t be around her.
跟她解释清楚，如果她不是积极的或是能够尊重他人的人，那么你会不再跟她来往了。

She says U.S.engagement with Burma's military government, known as the State Peace and Development Council, could be positive, but only if Washington remains firm in pushing for change.
One major difference between electron affinity and ionization energy is that when we talked about ionization energy, remember ionization energy always has to be positive.
电子亲和能,与电离能之间最大的不同就在于,当我们提到电离能的时候，记得电离能总是正的。
麻省理工公开课 - 化学原理课程节选
It's going to be positive in terms of its wave function or in terms of its phase anywhere where y is positive.
只要ｙ大于零它的波函数,或者说是相位为正。
麻省理工公开课 - 化学原理课程节选

Also, the macroeconomic data for U.S. seems to be positive for the most part.
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