trouble-free

 Longman Dictionary of Contemporary English 5++朗文当代英语 5++LDOCE 5++朗文 5++ˌtrouble-ˈfree adjective  PROBLEMwithout any problems 没有困难的，没有问题的，没有忧虑的 We ensure that you have a trouble-free and enjoyable holiday. 我们确保让您度过一个称心如意的愉快假期。

Examples from the Corpus

trouble-free• But police and parade stewards kept the two sides apart and the event was relatively trouble-free.• However, some items make useful additions to any holiday suitcase and will make sure you get the trouble-free break you deserve.• The biggest crisis in her until then trouble-free career came during a recording session in her home town.• And for mums with their hands full, there's a trouble-free container.• It's usually a trouble-free procedure, but occasionally there's a problem over whether you've really been living apart.• Yet if you want to ensure a trouble-free retirement, it's never too early to start financial planning.• At least London's Notting Hill Carnival got off to a trouble-free start.

ˌtrouble-ˈfree adjectiveChineseSyllable  

problems without any Corpus

trouble-free
ˌtrouble-ˈfree adjective
without any problems:
    We ensure that you have a trouble-free and enjoyable holiday.