黑板上用粉笔写着7个人名。There was a blackboard with seven names chalked on it.他用一截粉笔将她的指示写在黑板上。With a stick of chalk he wrote her order on a blackboard.一盒粉笔a box of pastels...
他们苦学了11个月的强化课程，拿到了学位。They secure their degrees by slogging through an intensive 11-month course.我苦学了两年英语课程.I laboured at the English course for two years.他每天苦学英语.He studies English hard every day....