??if only 只需;要是…就好

be ignorant of 对…不晓得(晓得)

attach importance to 注重

of

importance 重要，具有重

要意义

improve on 对…作出改进;跨越

be in for 参加(竞赛、考试等)

in and out 进进出出

be inferior to (质量等)比…差

inquire about 问询，探问

inquire after 问起(或人)的安康情况

inquire for 问询(商铺、地址等)

for instance 例如，比方，举例说

instead of 替代;而不是…

by instinct 凭(靠)天性

in the interest of 为了…的利益，为了

take interest in 对…感(发生)快

乐喜爱

interfere in 干与，干与

interfere with 打扰(或人)，阻止

at intervals 不时;相隔必定的间隔

at regular intervals 每隔必守时刻(间隔)

as it is 实际上，已然如此

as it were 如同，可以说是

by itself 主动地;单独地

in itself 本质上，就其本身而言

of itself 自行(到来)