1. 冲破；突破
If you break through a barrier, you succeed in forcing your way through it.

2. （克服困难或障碍）取得突破
If you break through, you achieve success even though there are difficulties and obstacles.

3. 显现；显露
When something that was previously hidden or could not be seen breaks through, it appears.

4. see also: breakthrough

1. penetrate

e.g. The sun broke through the clouds
The rescue team broke through the wall in the mine shaft

Synonym: come through

2. pass through (a barrier)

e.g. Registrations cracked through the 30,000 mark in the county

Synonym: crack

3. break out

e.g. The tooth erupted and had to be extracted

Synonym: eruptcome outpush through