By themselves, novas are not particularly noteworthy.
不过对于他们来说，新星现象并不是特别罕见。
2
Novas are not new stars. Rather, they are explosions that take place on existing ones, drastically but temporarily increasing their brightness.
新星并不是刚刚诞生的恒星，而是原有的恒星发生爆炸，从而导致短时间内亮度急剧增加。
3
This ensemble is in the classic jazz guitar trio format and performs a mixture of jazz standards, bossa novas, original compositions as well as a few Chinese melodies.