例句：
Luckily, nothing valuable was stolen.
幸运的是，没有贵重物品失窃。
Luckily for us, the train was late.
我们真凑巧，火车晚点了。
The accident could have been much worse; luckily no harm was done.
这次事故本来可能糟糕得多；所幸没有造成伤害。
Luckily I was feeling in a good mood.
幸好我当时情绪好。
