防不胜防要防的事太多,提防不过来。例这种小人真是防不胜防。——清吴趼人《二十年目睹之怪现状》英impossible to defend effectively; cannot reckon with all eventualities; be not easy to guard against; cannot stand up to;
美不胜收美景多得看不过来;艺术品太美而目不睱接。英so many beautiful things that one simply can't take them all in; be too beautiful to be absorbed all at once;