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決済， けっさい
1. settlement (of an account), liquidation of debts, payment
结算，付款
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サービス
1. service, help, assistance, care, concern
2. discount, discounted item
3. free service, freebie, gift
4. service, utility, amenity, resource
5. (after-sales) service, servicing, (product) maintenance
6. service (e.g. in tennis), serve
服务；免费服务，礼物
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取る， とる
1. to take, to pick up, to grab, to catch
2. to pass, to hand, to give
3. to get, to obtain, to acquire, to win, to receive, to earn, to take (e.g. a vacation)
4. to adopt (a method, proposal, etc.), to take (a measure, attitude, etc.), to choose
5. ...
采、拿、拾、抓取、抓住；传递、交付、给予；拿，得到
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戻る， もどる
1. to turn back (e.g. half-way)
2. to return, to go back
3. to recover (e.g. something lost), to be returned
4. to rebound, to spring back
折返；返回；找回，还回；弹回