critical

• The patient 's condition is critical .
  病人情况危殆。
• The patient 's condition is critical .
  病人情况危急。
• Now that the situation becomes critical , one must keep calm .
  事到临头，要沉住气。
• His appearance was the subject for some critical comment .
  他的外表受到一些人的议论。
• The most critical part of the enterprise commenced .
  这次冒险活动最关键的阶段到来了。
• There is a lack of critical data .
  缺乏严密的资料。
• The greater the enrichment, the less the critical mass .
  浓缩程度越大，临界质量越小。
• The shift manager realized the situation was critical .
  值班主任认识到了情况的危急性。
• We are faced with so many critical social problems .
  我们面前摆着那么多迫切的社会问题。
• He gave her a critical and condescending look-over .
  他用迁就的眼光细细地端详了她一下。