一定

1. fixed; specified; definite; regular

♦ 她一忙起来, 吃饭睡觉都没有~的时间了。 When she gets really busy, she doesn't keep regular hours for eating or sleeping.

2. certainly; surely

♦ 六点以前我~回家。 I shall certainly be home by six o'clock.

♦ 告诉他~不能说出去。 Tell him that under no circumstances is he to let it out.

3. given; particular; certain

♦ 在~意义上 in a certain sense

♦ 在~程度上 to a certain degree

♦ 在~条件下 under given conditions

4. proper; fair; due

♦ 达到~水平 reach a fairly high level

♦ 给以~的重视 attach due importance to