Under the national guidelines, travel to school, to workplaces and to shops to buy staples are all considered essential, as is travel on compassionate grounds, or for emergencies. The use of …
· 2、另外，【It is essential to do】结构中的【to do】则是不定式。 It is essential to book in advance. 3、有关动名词的详细内容，可关注公众号《英语思维EME》。
