Hawk stood on guard and we felt our way into the lane .
霍克担任警戒，我们摸黑走进了那条小巷。
In a region where there is growing concern about sharp increases in china 's military spending and capabilities other neighbors of china are on guard over the actions of chinese vessels .
But people now use the idiom to indicate that premature actions which put the enemy on guard .
但现在人们用它指使敌人产生戒备的不成熟的行为。
Crown princess mette-marit for instance moved freely among mourners at a gathering in the home town of her step-brother trond berntsen who was on guard at the labour party youth camp on utoya island and one of the first to be kill