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念のため， 念の為， ねんのため

1. just to make sure, just to be sure, for confirmation 2. just in case, for caution's sake, by way of precaution

tbd

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Ｘ線， エックス線， エックスせん

1. X-ray

X射线

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写真を撮る， 写真をとる， しゃしんをとる

1. to take a picture, to take a photo

tbd

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