The europeans can rouse themselves occasionally .

欧洲人偶尔也可以振奋自己。

I have occasionally reflected on why that was .

有时我不禁想知道为什么会这样。

Occasionally , a guy would ask for my number .

有时候，会有男人问我要号码。

I think this is important only occasionally and incidentally .

而我则认为这一重要性只是偶然的。

Cross-strait tensions still occasionally flare up .

两岸间的紧张局势时而仍会加剧。