那個國家的人力和財力已快到山窮水盡的地步了。
Seven years of war have stretched their army thin.

七年戰爭已使他們的兵力感到不足。

這液體好像變得稀薄了。 thin sth ? down
The painter thinned the paint down with white spirit.

畫家用松香油溶劑稀釋顏料。
Can you thin the paint down so that it spreads more easily?

你能不能把油漆調稀點兒?這樣不好刷。
The oppression of the invaders had thinned down the population of the village.

入侵者的壓迫使這個村莊的人口減少了。 thin down to sth
The stream had thinned down to a mere trickle.

小河越來越窄,最后變成了涓涓細流。
Her voice thinned down to a whisper as people turned to shush her.

當人們回過頭來噓她時,她就放低嗓門講話了。

傍晚時,敵人的抵抗越來越弱了。 thin sth ? out
The barber thinned out his customer's thick hair.

理發師把顧客的濃密頭發削薄了些。 thin out
Towards the city limits the houses begin to thin out.

靠近城市盡頭的地方房屋漸漸稀少起來。 thin sth ? out
He thinned out the seedlings.

他拔掉一些幼苗使它們變得稀疏。
War and disease had thinned out the population.

戰爭和疾病使人口減少了。
The population of the city was thinned out by the black death.

這個城市的人口由于黑死病而減少了。 thin sth ? out
They thinned out a stand to create a lush forest tomorrow.

他們除去了林場中多余的樹木,以利來日森林長得更茂盛。