His only concern had been not to spill the oil.
他唯一担心的是不要漏油。
After a long day of hard work, my only concern is to get back home and have a good sleep.
辛苦工作了一整天，我唯一关心的就是回家好好睡一觉。
那也是他唯一的担心。
My only concern was: How do I sound on the phone?
我唯一担心的是：从电话里听我的声音会是怎样的？
My only concern at this point is buyer's remorse.
眼下我唯一的担忧就是买家后悔。
My only concern is those foamy cells.
我只关注那些泡沫状细胞。
For Spain as a whole, that is not the only concern.
放眼整个西班牙，担忧还不仅如此。
My only concern at the moment is to go on holiday.
我目前只考虑去度假的事情。
My only concern is to set men absolutely, unconditionally free.
我只关心使人类绝对地，无条件地自由。
His mother's only concern was how to make him study even harder.
他妈妈心里想的全是如何使他学习更刻苦。
His only concern was how to improve the quality of their products.
他唯一关心的是如何提高他们产品的质量。
They do not mind in the slightest, for their only concern is your safety.
但他们丝毫不介意，一心只牵挂着你的安全。
The managing director's only concern was how to improve the quality of their products…
总经理心里想的全是如何提高产品质量。
They had brought a bottle with them, and their only concern at the moment was to relax in the company of each other and the bottle.
他们带来了一瓶酒。这会儿他们想做的只是在一起，喝喝酒，放松放松。
They had brought a bottle with them, and their only concern at the moment was to relax in the company of each other and the bottle.
他们带来了一瓶酒。这会儿他们想做的只是在一起，喝喝酒，放松放松。
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