81.   The chief executives said they were having great difficulty coming up with Novel products and services.

82.   The first step is to collect solid data that define which students have difficulty completing school assignments.

83.   The increased detail of these codes means that hospital coders are likely to have more difficulty in coding clinical work accurately.

84.   The only subject which I had difficulty with was technical drawing.

85.   The other approach has been to argue that rats have difficulty with passive avoidance because they can not remember recent events.

86.   The satellite has difficulty swiveling its antenna toward Earth.

87.   The second reason for calcium deficiency is the fact that the body has difficulty absorbing the mineral.

88.   The theory also has difficulty in coping with colour perception when a particular object May come in a number of colours.

v. + difficulty >>共 299
have 50.02%
face 9.00%
experience 2.78%
encounter 2.41%
cause 2.01%
overcome 1.99%
acknowledge 1.54%
underscore 1.23%
cite 1.21%
pose 1.05%
have + n. >>共 1145
chance 2.31%
problem 2.14%
trouble 1.82%
right 1.67%
plan 1.46%
idea 1.28%
lot 1.20%
time 1.09%
child 1.04%
power 1.04%
difficulty 0.75%
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