自2010年至今的四级考试中， 共出现过 次
自2010年至今的六级考试中， 共出现过 次
VERB 渗入；进入；穿过；穿透 If something or someone penetrates a physical object or an area, they succeed in getting into it or passing through it.
X-rays can penetrate many objects...
His men had been ordered to shoot on sight anyone trying to penetrate the area.
VERB 进入；跻身 If someone penetrates an organization, a group, or a profession, they succeed in entering it although it is difficult to do so.
...the continuing failure of women to penetrate the higher levels of engineering...
The drugs industry is complex and hard to penetrate.
VERB 打入，渗透（敌人或竞争对手内部） If someone penetrates an enemy group or a rival organization, they succeed in joining it in order to get information or cause trouble.
The CIA had requested our help to penetrate a drugs ring operating out of Munich...
The army was one of the few institutions the secret police were not encouraged to penetrate.
VERB 进入，打入（市场或地区） If a company or country penetrates a market or area, they succeed in selling their products there.
There have been around 15 attempts from outside France to penetrate the market.
VERB 了解；洞察；领悟 If you penetrate something that is difficult to understand, you succeed in understanding it.
...long answers that were often difficult to penetrate.