What a pleasant surprise!
这真是一桩令人又惊又喜的事！
I spent a pleasant evening chez the Stewarts.
我在斯图尔特家度过了一个愉快的夜晚。
Knowledge of French is a plus in her job.
通晓法文使她在工作中占优势。
Please file it in my 'Research' file.
请把它归入我的研究类档案。
You are free to come and go as you please.
你来去自由。