PE 1/25 Heartburn

1. the root of: ~의 원인
ex> The technician discovered a loose wire was at the root of my computer problems.

2. up the dose: 복용량을 증가시키다
ex> My doctor just up the dose of my blood pressure medicine and it's making me feel dizzy.

3. cut back on: ~을 줄이다, 감소시키다
ex> I need to cut back on my late night snacking, my waistband is way too tight.