手早い答え
sustar は行為や効力を停止し、suster は支えたり抑えたりします。
確実な見分け方は、英語から訳す前に、その単語の働きを見きわめることです。
それぞれの単語の働き
sustar
to suspend or halt
Use sustar for officially stopping the execution, progress, or effect of a measure.
suster
to sustain, restrain, or hold back
Use suster for supporting something or preventing movement, emotion, or decline.
選び方
- sustar: Choose sustar if the sentence points to officially stopping the execution, progress, or effect of a measure.
- suster: Choose suster if the sentence points to supporting something or preventing movement, emotion, or decline.
例文
O tribunal decidiu sustar a cobrança.
The court decided to suspend the charge.
Ela mal conseguiu suster o riso.
She could barely hold back her laughter.
よくある落とし穴
Their conjugations diverge: ele susta a medida, but ele sustém o peso or o impulso.
文脈の中で練習する
自分の実生活から文を一つ選び、二回書いてみましょう。一度はsustarで、もう一度はsusterで。どちらも成り立ちそうなら、意味の違いを言葉にしてみましょう。