为慎重起见，再问一问。
为慎重起见，拟采用管幕保护下的顶进法施工。
For the case of safety, its construction will adopt pipe-roof culvert box jacking method.
假如那时候我为慎重起见把它沉在海里，那么今天我也许会相信它是一首好诗。
I might have believed to-day that it was good, had I taken the precaution of sinking it then in the sea.
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