... supervision when using soldering tools, for instance Eg : Solder these two pipes together 107 | IELTS Leader | Ebooktienganh.com RELIABILITY (n) - Sự đáng tin cậy - the quality of being dependable ... AGITATE (v) - Lay động, rung động,xúi giục, khích động - move or cause to move back and forth 108 | IELTS Leader | Ebooktienganh.com Agitate means to stir up if you watch a horror movie at bedtime, ... something, you maintain its condition, like trying to preserve your good health by exercising 109 | IELTS Leader | Ebooktienganh.com regularly and eating right Eg : Mass spectrometry identified organic...