mijn

• Det

  belonging to me: my

• Noun
• Noun

concentratie

1. concentration (ability to focus one's attention)
2. concentration (amount of a substance relative to a total or volume)
3. concentration (amassment, grouping)

is

• Verb

  third-person singular present indicative of zijn; is, equals

• Adv

meestal

most of the time, in most cases, usually

erg

• Adj

  1. serious, considerable, severe
  2. awful, terrible

• Adv

laag

• Adj

  low

• Noun

rond

• Adj

  1. round, circular
  2. finished, completed

• Adv
• Prep
• Noun

uur

1. an hour, a period of time
2. the hour, the time of day
3. o'clock