服务不仅要在条件良好的情况下正常工作，而且还要能够恰当地处理出现错误的情况，这非常重要。
It's important for a service not only to work properly under good conditions, but also to handle error conditions properly.
如果时间恰当，仍然可以进行正常的收割处理。未收获的农作物可能难以存活。
Normal harvesting and processing may still be possible if time permits. Unharvested crops are hard to protect.
穿恰当高度的高跟鞋将有助于你确保把你的脚正确放在地上——老式鞋跟就很好，脚掌和脚趾可以正常活动。
Wearing the right height of heel will help ensure you place your foot on the ground correctly - good old-fashioned heel, ball, toe action.
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