必须英语怎么说
They have got to abide by the rules.
The law mandates that imported goods be identified as such.
The project must be completed within a specific time span.
Parents are obliged by law to send their children to school.
You have to be very alert when you are at your most vulnerable, especially when you are depressed or feeling isolated.
We must be alert to these signals and respond with the compassion and care that are hallmark traits of what it means to be a woman, anywhere, everywhere.
A pilot must remain vigilant at all times.
She stressed the need for constant vigilance.
Ageing in this case must occur according to the laws of physical chemistry and of thermodynamics.
Remedial action must be taken now.
We must demonstrate that aggression will not pay.
We have to prove how gritty we are.
The company needs to improve its competitive edge.
All these factors must be allowed for.
You have to have a sharp knife.
The design of crucial instruments on the control panel will have to be improved.
We must stand with our fathers.
Leading officials at all levels must firmly put into practice the guiding principles and arrangements of the CPC Central Committee.
I personally regret this development, but the basic bachelor's education now has to cater to people who really need a piece of paper to find a decent job.
I know I have to depend on these foods.
Firefighters have to count on each other during a fire.
We must rely on the honesty and good faith of others.
Mining firms must also try harder to respond to public concern.
Staff must report for duty at their normal place of work.
You must know how to select typefaces, point sizes, how to adjusts Spaces between groups of letters and between pairs of letters.