Sometimes even a light touch on the face is enough to trigger off this pain.

有时即便轻轻一碰脸部都足以引起这种疼痛.

Wire the thermometers up to trigger off an alarm bell if the temperature drops.

给温度计接上线,如果温度下降,报警铃就会响.

Large price increases will trigger off demands for ever larger wage increases.

大幅度涨价会引发人们要求更大幅度地增长工资.

Careless political action can trigger off a war.

不慎重的政治行动能引发一场战争.

Price increases trigger off demands for wage increases.

物价上涨引起了增加工资的要求.

There are some food that trigger off a headache or migraine attack and some that don .

有些食物会引起头痛或偏头痛,有些食品则不会引起.