「I’m afraid (that) + …」で「… だと思う」「残念ながら …」という意味になる
以内を表す時は「within x weeks」を使う
gradually /grˈædʒuəli/
adverb
improve /ɪmprúːv/
transitive verb
improve + object
improve + oneself + in, at + noun
intransitive verb
improve
improve + in + noun
improve + on, upon + noun
increase /ɪnkríːs/
intransitive verb
increase
increase + in + noun
transitive verb
increase + object
decrease /dɪkríːs/
intransitive verb
decrease
transitive verb
decrease + object