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ひたすら， 只管， 一向， 頓
1. intently, single-mindedly, devotedly, solely, earnestly, with all one's heart
全神贯注地，一心一意地，全心全意地，只顾着，认真地，倾注全部心力地
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ただ， タダ， 只， 唯， 徒， 但， 常
1. ordinary, common, usual
2. free of charge
3. unaffected, as is, safe
4. only, merely, just, simply
5. but, however, nevertheless
但是，尽管如此；通常，一般情况下；免费；只、仅仅