This is the word to be used.

这是最适的字眼。

To be rude to the old is not proper.

对老人粗鲁是不适的。

Lack of the right food may stunt growth.

缺乏适的食物会阻碍发育。

Catfall. You recover well from a fall.

你在跌落时能适的平衡身体。

Learn to say the right at the right time.

学习在适的时候说适的话。

The wound was not properly disinfected and gangrene set in.

伤行适的消毒，开始生坏疽。

The professor punctuated his lecture with a few well-chosen jokes.

教授在讲演中不时插入几个适的笑话。

He ascribed his good health to proper diet and exercise.

他把身体好归功于适的饮食及运动。

He tried to exercise an undue influence upon his colleagues.

他想对他的同事施加不适的影响。

Complete the following sentences by filling the blanks with proper prepositions and adverbs.

用适的冠词和副词填空, 完成下列句。

One of the cups is out of position.Put it back in position.

有杯位置不对, 把它放在适的位置。

He and I dissented from each other in choosing a suitable candidate.

他和我在选择适的人选这个问题上意见不一致。

Accordingly, if want to use paper of oil absorption face, semidiurnal frequency is the properest.

因此，若要使用吸油面纸，一天两次的频率是最适的。

It's not proper to patch the roof with nailsick boards.

用多次钉过钉而不结实的木板修补屋顶是不适的。

If you can work on Saturdays and Sundays, we’ll make it worth your while.

如果你愿意在周六和周日加班，我们会给你适的报酬。

"The general mistimed the attack, which should have been made an hour earlier."

"将军在不适的时间发起了攻,一小时前他就应该这样做了。"

The nails are positioned as desired.

钉被钉在适的位置。

The outcome of this patient was excellent due to aggressive resuscitative measures including open-chest cardiac massage.

经过适的急救处置，以及开胸心臓按摩后，病患的预后状况非常良好。

It's safest to remain a good distance behind, in case the car in front suddenly stops.

最安全的方法就是和前面的车保持适的距离, 以免它突然刹车。

Moderate exercise will benefit you.

适的锻炼对你有好处。